How long does a roof replacement take?

Many homes take one to two days on site. Size, complexity, deck repairs and weather can stretch that. The time before the start date, for the estimate, material selection, any HOA approval and the permit, is often longer than the installation itself. Lead times for some materials, especially specialty colors and metal panels, can also affect when work can start.

Do I need to be home during the replacement?

Not necessarily. Most homeowners are home for the start and the final walkthrough, but you do not need to stay all day. The noise is significant, so people working from home or with pets often plan to be out for part of the day. Make sure the crew can reach exterior outlets and that gates are unlocked. Expect some noise and vibration through the day, especially during tear-off.

What warranties come with a new roof?

Usually two: the manufacturer's warranty on the materials and the contractor's workmanship warranty on the installation. They cover different things, so read both. Ask who handles warranty claims and how quickly. A long warranty is only as good as the company standing behind it. How the coverage differs: Manufacturer warranty: Covers defects in the shingles or panels, often with longer terms when the full system is installed by a certified contractor. Workmanship warranty: Covers installation mistakes such as flashing or nailing errors, and depends on the contractor still being in business. Registration: Many enhanced manufacturer warranties must be registered after installation to apply. Transferability: Some warranties transfer to a new owner, which can matter when you sell. Keep the registration confirmation and closeout photos with your home records.

What is the best time of year to replace a roof?

Late spring through fall is most common because shingle seal strips bond best in warmer weather. Mild winter days can work too. Storm season books contractors up fastest, so scheduling ahead of it, or right after the rush, can give you more flexibility. Booking an inspection early in the year gives you more control over dates and materials than calling after a big storm.

Can I pay for a roof replacement over time?

Ask about it when you request an estimate. Payment options vary by contractor and project. If insurance is paying part of the job, the payments usually follow the insurer's schedule, with depreciation released after the work is complete. Ask whether there is a deposit, when the balance is due, and what happens if decking or other surprises add cost.

Will a new roof increase my home's value?

A new roof can help a home sell faster and avoid buyer objections, though the exact value added varies by market and home. Buyers and their inspectors look closely at roof age. A recent replacement with transferable warranty paperwork removes a major question during negotiations.

How do I prepare my home for a roof replacement?

A little preparation protects your belongings and helps the crew work safely and quickly. Most of it takes less than an hour the day before. A simple prep checklist: Clear the driveway: Move vehicles and anything near the house that debris could hit. Protect the attic: Cover stored items, since dust and nails can fall through during tear-off. Secure wall items: Take down pictures and shelves that vibration could knock loose. Plan for pets and kids: The noise and activity can be stressful, so plan time away if possible. Let neighbors know the date too, especially if a dumpster will sit near a shared driveway or street.

Should I replace my gutters or attic ventilation at the same time?

Often it makes sense. The roof is open and the crew is already on site, which can save cost and coordination. Damaged or undersized gutters, old drip edge, and poor attic airflow all affect how long a new roof lasts. When Mary Jo asked about adding attic ventilation, we checked first and confirmed her roof already met ventilation requirements, so she did not pay for work she did not need.

What happens if the crew finds damaged decking?

Damaged boards are photographed, shown or sent to you, and replaced at the per-sheet price listed in your estimate. This is why a decking allowance belongs in every estimate. It keeps surprises predictable and prevents new roofing from being nailed into soft wood.

Roof Replacement in Denver by Peak to Peak Roofing

Residential Roof Replacement

Roof Replacement Built to Protect Your Home

Replace your worn or storm-damaged roof with a clear estimate and a plan for every stage of the job. Peak to Peak Roofing helps you compare materials, understand warranty coverage, and know what to expect from tear-off through the final cleanup.

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What Goes Into Your New Roof

A roof is not just shingles. It is a stack of parts, and each one has a job. If a bid leaves a layer out, the price looks better and the roof performs worse.

Roof system layers, purpose and the code section that governs them

Roof deck

What it is: The plywood or OSB sheets nailed to the rafters.
Its job in plain words: The floor of the roof. Everything else fastens to it.
Code or standard reference: IRC R803, deck must be sound and properly supported before covering.

Ice barrier

What it is: A self adhering membrane at the eaves that sticks to the deck.
Its job in plain words: Blocks water that backs up under shingles when ice forms at the cold overhang.
Code or standard reference: IRC R905.1.2, required in areas subject to ice damming.

Underlayment

What it is: A synthetic or felt sheet rolled over the whole deck.
Its job in plain words: The backup layer. If water gets past a shingle, this sheds it.
Code or standard reference: IRC R905.1.1 and ASTM D226 or ASTM D4869 for felt.

Drip edge

What it is: Metal angle along eaves and rakes.
Its job in plain words: Kicks water off the edge and into the gutter instead of behind it.
Code or standard reference: IRC R905.2.8.5, drip edge is required at eaves and rakes.

Starter strip

What it is: A sealed first course under the visible bottom row.
Its job in plain words: Glues down the bottom edge so wind cannot get under it.
Code or standard reference: Required by shingle manufacturer instructions for wind warranty coverage.

Flashing

What it is: Metal at walls, chimneys, valleys and skylights.
Its job in plain words: Bridges every place the roof stops and something else begins.
Code or standard reference: IRC R903.2, flashing required at wall and roof intersections.

Shingles

What it is: The visible weather surface.
Its job in plain words: First line of defense and the part that takes the sun and hail.
Code or standard reference: IRC R905.2, ASTM D3161 or D7158 wind, ASTM D3462 for fiberglass shingles.

Ventilation

What it is: Intake at the soffit, exhaust at the ridge.
Its job in plain words: Keeps the attic close to outdoor temperature so the deck stays dry.
Code or standard reference: IRC R806, one to 150 net free area, or one to 300 when conditions are met.

Layer	What it is	Its job in plain words	Code or standard reference
Roof deck	The plywood or OSB sheets nailed to the rafters.	The floor of the roof. Everything else fastens to it.	IRC R803, deck must be sound and properly supported before covering.
Ice barrier	A self adhering membrane at the eaves that sticks to the deck.	Blocks water that backs up under shingles when ice forms at the cold overhang.	IRC R905.1.2, required in areas subject to ice damming.
Underlayment	A synthetic or felt sheet rolled over the whole deck.	The backup layer. If water gets past a shingle, this sheds it.	IRC R905.1.1 and ASTM D226 or ASTM D4869 for felt.
Drip edge	Metal angle along eaves and rakes.	Kicks water off the edge and into the gutter instead of behind it.	IRC R905.2.8.5, drip edge is required at eaves and rakes.
Starter strip	A sealed first course under the visible bottom row.	Glues down the bottom edge so wind cannot get under it.	Required by shingle manufacturer instructions for wind warranty coverage.
Flashing	Metal at walls, chimneys, valleys and skylights.	Bridges every place the roof stops and something else begins.	IRC R903.2, flashing required at wall and roof intersections.
Shingles	The visible weather surface.	First line of defense and the part that takes the sun and hail.	IRC R905.2, ASTM D3161 or D7158 wind, ASTM D3462 for fiberglass shingles.
Ventilation	Intake at the soffit, exhaust at the ridge.	Keeps the attic close to outdoor temperature so the deck stays dry.	IRC R806, one to 150 net free area, or one to 300 when conditions are met.

References are to the International Residential Code as commonly adopted along the Colorado Front Range, plus ASTM material standards. Jurisdictions amend code locally, so we confirm the adopted edition and amendments for your address before permitting.

What Homeowners Say About Their Roof Replacement

Real Google reviews from our Denver listing that mention this kind of work. Quotes are trimmed for length, never reworded.

Replacement after the May 2024 hail
"Luke, who went up on the roof to do the estimate, educated us on shingle types and what insurance would cover and responded immediately to all our questions."
Shingle choices and what the policy covers get explained before the contract, not after.
Allen Staver, Google review, April 2025. Read it on Google (review by Allen Staver)
Tearing off three layers
"Three layers of old roofing needed to be removed, roof wood replaced, and new roofing shingles installed , along with new vents."
Old layers come off down to the deck so damaged wood can be found and replaced.
Larry Frederiksen, Google review, July 2025. Read it on Google (review by Larry Frederiksen)
Replacement on a sale deadline
"I needed to have a new roof installed on a house as a condition of sale on a very short timeline."
Schedules are planned around real deadlines, such as a home sale.
Robert Smueles, Google review, November 2025. Read it on Google (review by Robert Smueles)
Cleanup after the crew
"They were on time and on budget, and the new roof looks great."
Budget and schedule are set up front, and the site is swept for nails afterward.
Hay Beirme, Google review, October 2025. Read it on Google (review by Hay Beirme)
Being told it can wait
"I appreciated the honesty in letting me know the job could wait, rather than simply signing a new customer for the sake of a sale."
A replacement is recommended only when the roof actually needs one.
Jeannie Olvera, Google review, March 2025. Read it on Google (review by Jeannie Olvera)

View More Reviews on Google

Signs Your Roof Needs Replacement

Widespread shingle wear, repeat leaks and damaged decking help determine whether replacement is needed. Age alone does not decide it. These are the signs that a roof has moved past repair. A replacement is the right call when continued repairs cost more over time than starting fresh, or when the roof can no longer protect the house reliably.

Wear on every slope: Granule loss, curling or cracking across the whole roof means the system is aging out, not failing in one spot.
Repeat leaks: When repairs keep returning to new areas, each fix buys less time and the total cost adds up.
Widespread storm damage: Hail or wind damage across several slopes is often more practical to replace than to patch.
Soft or sagging areas: A deck that flexes underfoot or sags between rafters points to long-term water or structural problems.

If you are unsure, an inspection with photos and an honest repair-or-replace opinion is the right first step.

Roof Replacement project in Denver by Peak to Peak Roofing

A New Roof Starts With a Sound Deck

Some roofs can technically take a second layer of shingles over the first. In most cases, a full tear-off is the better choice. Your inspection will show whether an overlay is even an option. If the existing roof has two layers already, soft decking or failed flashing, tear-off is the only sound choice.

Tear-off exposes the deck, so soft or damaged boards are found and replaced instead of buried.
A new layer over an old one adds weight and can telegraph bumps and old damage through the new shingles.
Many manufacturers limit warranty coverage on overlays, and some building codes restrict how many layers are allowed.
Overlays cost less up front but leave old flashing and problems in place.

Peak to Peak holds an A+ rating with the Better Business Bureau, is an Owens Corning Platinum Preferred Contractor, and has a 4.9-star average across 427 Google reviews.

Peak to Peak Roofing crew completing roof replacement in Denver

Know What Your Replacement Estimate Includes

A roof replacement estimate should name tear-off, decking repairs, roofing materials, flashing, ventilation, permits and warranty terms. Two bids are only comparable when they describe the same job. These are the lines to look for. If one bid is missing a line the others include, ask about it. That gap is often the reason a price looks lower.

Tear-Off and Disposal

How many layers come off, dumpster or haul-away, and cleanup.

Decking Allowance

A price per sheet for replacing damaged boards found during tear-off.

Roofing Materials

The shingle or panel line, color, underlayment and accessories by brand. For impact-resistant shingles, ask whether the exact product carries a UL 2218 Class 4 rating, a laboratory impact classification rather than a promise against hail damage.

Flashing and Ventilation

Whether flashing is replaced and how attic ventilation will be handled, including intake at the eaves and exhaust near the ridge so airflow is considered as a system.

Permit and Inspections

Who pulls the permit and schedules required inspections.

Warranty Terms

The manufacturer warranty, the workmanship warranty and how each is registered. Ask which material defects and installation errors each covers, and check exclusions and transfer requirements.

Shingle and Metal Options Compared for a Replacement Roof

A full roof replacement in Denver typically runs $15,000 to $50,000, and material choice is one of the biggest factors in where your home lands. Size, pitch, valleys, chimneys and decking repairs drive the rest, so ask for an itemized estimate.

Field guidance informed by the roofing standards and service approach of JJ Hedden, owner of Peak to Peak Roofing & Exteriors. About JJ

Replacement roofing questions compared by material behavior, cost position and owner guidance

Will Class 4 shingles actually survive a Denver hailstorm?

How the options compare: UL 2218 Class 4 shingles are tested against a steel ball dropped from height, so they resist the cracking and granule loss that standard architectural shingles take in larger hail.
Why it matters: Impact rating is the line item that most decides whether a future storm becomes a claim or just an inspection.
JJ Hedden's guidance: Ask JJ to compare Class 4 product lines and ask your insurer how they treat impact-rated roofs.

Is metal worth the extra cost over architectural shingles?

How the options compare: Standing seam and stone-coated metal shed snow and do not absorb water, and they give the longest service life of the three, though large hail can leave cosmetic dents.
Why it matters: Metal is the highest upfront cost, so the value depends on how long you stay and how cosmetic dents are treated later.
JJ Hedden's guidance: Discuss panel gauge, finish and snow guard placement with JJ before choosing metal.

Does the old roof have to come off, or can a new one go over it?

How the options compare: An overlay saves tear-off cost but hides the deck, and every extra layer adds weight. Tear-off lets the deck, ice barrier and flashing be replaced to the manufacturer specification.
Why it matters: Deck repairs only happen once the old layers are off, and soft spots found during tear-off change the price.
JJ Hedden's guidance: Ask JJ how decking is priced if soft spots turn up during tear-off.

What actually decides how long the new roof lasts?

How the options compare: Underlayment (ASTM D226 felt or ASTM D4869 synthetic), ice barrier at the eaves, and balanced ridge and soffit ventilation do most of the work, and the shingles only perform as well as what sits under them.
Why it matters: Ice dams and trapped attic moisture shorten shingle life years before the warranty date.
JJ Hedden's guidance: Ask JJ to point out the underlayment, ice barrier and ventilation lines on your estimate.

The question homeowners ask	How the options compare	Why it matters	JJ Hedden's guidance
Will Class 4 shingles actually survive a Denver hailstorm?	UL 2218 Class 4 shingles are tested against a steel ball dropped from height, so they resist the cracking and granule loss that standard architectural shingles take in larger hail.	Impact rating is the line item that most decides whether a future storm becomes a claim or just an inspection.	Ask JJ to compare Class 4 product lines and ask your insurer how they treat impact-rated roofs.
Is metal worth the extra cost over architectural shingles?	Standing seam and stone-coated metal shed snow and do not absorb water, and they give the longest service life of the three, though large hail can leave cosmetic dents.	Metal is the highest upfront cost, so the value depends on how long you stay and how cosmetic dents are treated later.	Discuss panel gauge, finish and snow guard placement with JJ before choosing metal.
Does the old roof have to come off, or can a new one go over it?	An overlay saves tear-off cost but hides the deck, and every extra layer adds weight. Tear-off lets the deck, ice barrier and flashing be replaced to the manufacturer specification.	Deck repairs only happen once the old layers are off, and soft spots found during tear-off change the price.	Ask JJ how decking is priced if soft spots turn up during tear-off.
What actually decides how long the new roof lasts?	Underlayment (ASTM D226 felt or ASTM D4869 synthetic), ice barrier at the eaves, and balanced ridge and soffit ventilation do most of the work, and the shingles only perform as well as what sits under them.	Ice dams and trapped attic moisture shorten shingle life years before the warranty date.	Ask JJ to point out the underlayment, ice barrier and ventilation lines on your estimate.

Your Roof Replacement, Step by Step

Many homes are torn off and re-roofed in one or two days, weather permitting. Larger or complex roofs take longer. Our crew lead stays in touch through the day, and you will know what was found and what was replaced before the job is done.

Before the crew arrives: Move cars out of the driveway, take fragile items off walls and shelves near the roof, and let neighbors know. Protect anything stored in the attic from falling dust.
Tear-off and deck check: The old roof comes off, the deck is inspected, and any damaged boards are replaced and photographed.
Installation: Underlayment, flashing, ventilation and the new roofing go on, slope by slope.
Cleanup and walkthrough: Debris is removed, the yard is swept with magnets for nails, and you walk the finished job and receive closeout photos and warranty details.

For Dan, we coordinated solar panel removal and reinstallation during a full roof and detached garage replacement, completed both structures in one day, and cleaned up thoroughly afterward.

Peak to Peak Roofing crew working in Denver

Service Area Coverage

Peak To Peak Roofing serves homeowners throughout Denver and surrounding areas, providing residential roof replacement directly at their properties. The service area covers Denver, Aurora, Littleton, and Castle Pines, accessible via I-25, I-70, and C-470, and serving communities including Capitol Hill, Park Hill, Central Park, Cherry Creek, and Highlands. Technicians respond quickly to requests throughout the area, offering convenient scheduling that works around customers' availability in Denver and beyond.

Serving Denver, Aurora, Littleton, and Castle Pines with full residential roofing coverage
Accessible throughout the region via I-25, I-70, C-470, and local arterial routes
Mobile service reaching customers across the entire Denver metro area and Front Range communities
Providing convenient roof replacement directly at customers' homes

Peak To Peak Roofing offers flexible scheduling throughout Denver and surrounding areas, with appointments available directly at your location to minimize disruption.

Frequently Asked Questions

JJ Hedden

Founder & Owner

Meet The Owner

JJ Hedden, Founder & Owner

JJ Hedden founded Peak to Peak Roofing & Exteriors so Front Range property owners would have a roofer who is still reachable after the truck pulls away. He came up through inspections, claims and installations, so the standards our crews work to are the ones he set on roofs himself.

On a full replacement he reviews the scope before it goes out: decking condition, ventilation balance, ice and water coverage and the flashing details. If a Front Range roof can be repaired instead, he will say so rather than sell a tear off.

Roofing Colorado since 2008
Reviews every replacement scope
Ventilation and decking checked first
Family owned, Denver based

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Credentials You Can Check Yourself

BBB Accredited, A+ rating
Peak to Peak Roofing and Exteriors, LLC has been BBB Accredited since January 2010.
View the BBB business profile
Colorado Roofing Association member
Listed as a contractor member, with JJ Hedden named as owner.
View the CRA member listing
Liability and workers' comp on file
General liability and workers' compensation are two separate policies. Ask for a current certificate of insurance before work starts.
See coverage dates on the CRA listing
Local contractor licensing
Colorado has no statewide roofing license. Licensing and permits are set by each city or county, so ask which applies to your address.

Full Roof Replacements Since 2008

Ready for a New Roof?

Complete tear-off, deck inspection, code-compliant ice barrier, and permitted final inspection. You get a line-by-line scope you can actually compare.

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"Peak to Peak was great, they helped me with a repair on my roof. Helped me to extend the life of my roof."
- Luke Howard