Roofing · Longmont, CO
How much does asphalt shingle roof replacement cost in Longmont, CO? (2026)
In Longmont, asphalt shingle roof replacement runs $6,250–$12,900, with most paying around $9,600 — about 8% above the national average. Replacing an asphalt shingle roof — the most common residential roofing material.
Updated June 2026 · Localized estimate, not a quote
Most homeowners pay around $9,600
- Typical cost
- $9,600
- Labor vs US
- US avg
- Climate
- Cold
- Local permit
- $275
Refine your estimate
Tune it to your home to narrow the asphalt shingle roof replacement range.
Why asphalt shingle roof replacement costs what it does in Longmont
- Labor rates in Longmont are close to the national average (based on price levels for the Boulder metro area).
- Longmont's cold climate increases typical asphalt shingle roof replacement cost by about 5% versus a neutral climate.
- A Roofing permit in Longmont costs around $275, included above.
Asphalt Shingle Roof Replacement cost by roof size in Longmont
Roofing is priced per 'square' (100 sq ft of roof). A roof is bigger than the home's footprint because of pitch and overhangs — a 2,000 sq ft home often has a 2,200–2,600 sq ft roof. Asphalt runs about $3–$5 per sq ft installed.
| roof size | Longmont 2026 range |
|---|---|
| 1,000 sq ft (10 squares) | $4,250 – $7,650 |
| 1,500 sq ft (15 squares) | $5,550 – $10,250 |
| 2,000 sq ft (20 squares) | $6,250 – $12,900 |
| 2,500 sq ft (25 squares) | $8,150 – $15,000 |
| 3,000 sq ft (30 squares) | $9,750 – $18,150 |
| 3,500+ sq ft (35 squares) | $11,300 – $21,300 |
National size ranges localized to Longmont labor and climate.
Asphalt Shingle Roof Replacement cost by type in Longmont
| 3-tab shingles | $6,250 – $10,800 |
| Architectural shingles | $7,650 – $12,900 |
Adjusted to Longmont from national type-level ranges.
Asphalt Shingle Roof Replacement cost by efficiency in Longmont
Asphalt comes in three grades. The shingle you pick drives both the price and how long the roof lasts — architectural is the mainstream default, premium mimics slate or shake.
| 3-tab shingles (basic)Lowest upfront; ~15–20 yr life | $6,250 – $10,800 |
| Architectural / dimensionalBest all-round value; ~25–30 yr life | $7,650 – $12,900 |
| Premium / designerSlate/shake look; thickest, longest warranty | $9,750 – $17,100 |
Labor vs. materials in Longmont
Install crew, removal, permit & startup — the part Longmont rates move most.
Equipment & materials — priced closer to the national level.
Split based on a typical $9,600 Longmont project; your mix varies with scope.
How we estimate it
| National range | $5,700 – $12,000 |
| Longmont labor adjustment | ×1 |
| cold climate factor | ×1.05 |
| Local permit | +$275 |
| Longmont estimate | $6,250 – $12,900 |
Additional asphalt shingle roof replacement costs to budget for
These aren't always in the headline price. Whether you'll pay them depends on your home's condition and setup.
| Tear-off & disposal of old roofPer layer removed; more if multiple layers | $1,000 – $3,000 |
| Decking / sheathing repairOnly if rotten plywood is found after tear-off | $500 – $3,000 |
| New underlayment & ice-and-water shield | $300 – $1,500 |
| Ridge vents / improved attic ventilation | $300 – $1,000 |
| Flashing, drip edge & chimney/skylight reseal | $200 – $1,500 |
| Permit | $150 – $500 |
Typical national add-on ranges; confirm locally during your quote.
What's included
- Tear-off and disposal of the old roof
- Underlayment, flashing and new shingles
- Ridge vents and basic decking inspection
- Labor, cleanup and permit
What affects the cost
- Roof size (squares) and pitch/complexity
- 3-tab vs architectural shingles
- Number of layers to remove
- Decking repairs and flashing condition
Ways to save on asphalt shingle roof replacement in Longmont
- Architectural shingles last longer for a small premium
- Replace before leaks damage the decking
- Get quotes in late fall/winter (slow season)
- Bundle gutter or vent work to share setup costs
How long does asphalt shingle roof replacement last in Longmont?
3-tab lasts ~15–20 years; architectural shingles 25–30 with good ventilation.
An annual inspection plus gutter cleaning catches small leaks before they rot the deck.
Signs you need asphalt shingle roof replacement in Longmont
- The roof is 20+ years old (near or past asphalt's service life)
- Shingles are cracked, curling, buckling, or missing after storms
- Granules collecting in the gutters or bald, shiny spots on shingles
- Water stains on ceilings or in the attic, or daylight through the roof boards
- A sagging roofline or soft, spongy deck underfoot
- Moss or dark algae streaks holding moisture against the shingles
- Repeated leaks even after patch repairs
Repair or replace in Longmont?
Repair if…
- Damage is isolated to a few shingles or one slope
- The roof is under ~15 years old and the deck is sound
- A single flashing or vent boot is the source of the leak
Replace if…
- The roof is 20+ years old and leaking in multiple spots
- There's widespread granule loss, curling, or storm damage
- The deck is sagging or has rot — the structure, not just the surface, is failing
- There are already two layers of shingles (most codes cap it at two)
Questions to ask Longmont Roofing pros
Comparing quotes is only fair when they cover the same scope. Ask every bidder these before you sign.
- 1Is a full tear-off included, or are you laying over the existing roof?
- 2How will you handle deck repairs or rotten sheathing found after tear-off, and at what rate?
- 3What underlayment, ice-and-water shield, and ventilation are included?
- 4Are you licensed and insured here, and can you share recent local references?
- 5What's the workmanship warranty, and how does it interact with the material warranty?
Asphalt Shingle Roof Replacement in Longmont
How much does asphalt shingle roof replacement cost in Longmont, CO?
In Longmont, asphalt shingle roof replacement typically costs $6,250 to $12,900 in 2026, with most homeowners paying around $9,600. The figure is adjusted for local labor rates, cold-climate factors and permit fees.
Is asphalt shingle roof replacement more expensive in Longmont than average?
Longmont is about 8% higher than the national average, mainly because local labor runs at an index of 1 relative to the US average and the local Roofing permit costs about $275.
Do I need a permit for asphalt shingle roof replacement in Longmont?
Most Longmont jurisdictions require a Roofing permit for this work. Budget roughly $275 for the permit; it is already included in the estimate above.
What affects asphalt shingle roof replacement cost the most?
Replacing an asphalt shingle roof — the most common residential roofing material. The biggest drivers are equipment/material grade, the size and complexity of your home, local labor rates, and your climate zone (cold).
How we calculated this estimate
We start with 2026 national asphalt shingle roof replacement ranges compiled from contractor-pricing sources (Angi, HomeGuide, Fixr and EnergySage averages), then localize them to Longmont using the BEA Regional Price Parity labor index (×1 here), the IECC cold-climate factor (×1.05) and a typical local permit fee (≈$275). Federal incentive details reference the IRS Inflation Reduction Act (25C/25D) and DSIRE.
This is a planning estimate, not a quote.Actual prices vary with your home's condition, equipment grade and contractor — always confirm with licensed local pros before budgeting.
Asphalt shingle roof replacement alternatives in Longmont
Homeowners in Longmont often pair this with
A asphalt shingle roof replacement rarely happens in isolation — these projects commonly come up alongside it.