91/100CR Score
Ranked #1 because of its Google rating and availability: 4.7★ from 808 Google reviews, open 24/7.
- 4.7★ from 808 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6731 E 50th Ave a, Commerce City, CO 80022
Best Siding Contractors in Thornton, CO (2026)
375 siding contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Thornton: 1-800-HANSONS, CR Score 91/100; 4.7★ from 808 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Ace Handyman Services Aurora, posts 24/7 hours; ranked #2 of 375.
- 32
Most-reviewed: DaBella, 2,034 Google reviews at 4.4★, the most of 375 ranked; ranked #32.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
375 Thornton siding contractors are ranked here by CR Score, from 8 published factors. 39 are open 24/7, 227 open Saturdays and 102 open Sundays, based on posted hours. The median Google rating is 4.9★ across 375 rated businesses.
Top 10 siding contractors in Thornton at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | 1-800-HANSONS | 91 | 4.7★ (808) | Commerce City, 6 mi away | 24/7 | Overall |
| 2 | Ace Handyman Services Aurora | 88 | 4.9★ (143) | Aurora, 16 mi away | 24/7 | Emergencies |
| 3 | Aloha State Builders, Inc. | 88 | 5.0★ (76) | Lakewood, 11 mi away | 24/7 | — |
| 4 | Reliable Roofing & Restoration, Inc. | 86 | 5.0★ (302) | Westminster, 4 mi away | 24/7 | — |
| 5 | GS Exterior Experts | 85 | 4.9★ (303) | Littleton, 20 mi away | Sat · Sun · Evenings | — |
| 6 | Elite Exteriors of Denver LLC | 85 | 5.0★ (44) | Thornton | Sat · Sun · Evenings | — |
| 7 | Glassford Project Management | 85 | 5.0★ (45) | Longmont, 21 mi away | 24/7 | — |
| 8 | MSSV Construction | 85 | 5.0★ (74) | Denver, 8 mi away | Sat · Sun · Evenings | — |
| 9 | Orus Painting Solutions | 85 | 5.0★ (132) | Cherry Hills Village, 18 mi away | Sat · Sun | — |
| 10 | Echelon Exteriors | 84 | 5.0★ (18) | Denver, 14 mi away | 24/7 | — |
The 375 best siding contractors in Thornton, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Aurora, 16 mi away
88/100CR ScoreRanked #2 because of its Google rating and availability: 4.9★ from 143 Google reviews, open 24/7.
- 4.9★ from 143 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3090 S Jamaica Ct Ste 209, Aurora, CO 80014
Based in Lakewood, 11 mi away
88/100CR ScoreRanked #3 because of its Google rating and availability: 5.0★ from 76 Google reviews, open 24/7.
- 5.0★ from 76 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1425 Brentwood St Suite 16, Lakewood, CO 80214
Based in Westminster, 4 mi away
86/100CR ScoreRanked #4 because of its Google rating and availability: 5.0★ from 302 Google reviews, open 24/7.
- 5.0★ from 302 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1313 W 121st Ave, Westminster, CO 80234
Based in Littleton, 20 mi away
85/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 303 Google reviews, listed on Google as “Siding contractor”.
- 4.9★ from 303 Google reviews
- Hours
- Mon–Sun 7 AM–8 PM
- Address
- 9083 W Peakview Dr #2, Littleton, CO 80123
Based in Thornton
85/100CR ScoreRanked #6 because of its Google rating and trade focus: 5.0★ from 44 Google reviews, listed on Google as “Siding contractor”.
- 5.0★ from 44 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 11881 Grape Ct, Thornton, CO 80233
Based in Longmont, 21 mi away
85/100CR ScoreRanked #7 because of its Google rating and availability: 5.0★ from 45 Google reviews, open 24/7.
- 5.0★ from 45 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1067 S Hover St E, Longmont, CO 80501
Based in Denver, 8 mi away
85/100CR ScoreRanked #8 because of its Google rating and trade focus: 5.0★ from 74 Google reviews, listed on Google as “Siding contractor”.
- 5.0★ from 74 Google reviews
- Hours
- Mon 5 AM–5 PM · Tue–Wed 5 AM–7 PM · Thu–Fri 5 AM–6 PM · Sat 5 AM–7 PM · Sun 6 AM–7 PM
- Address
- 1801 Wewatta St Floor 11 #14, Denver, CO 80202
Based in Cherry Hills Village, 18 mi away
85/100CR ScoreRanked #9 because of its Google rating and trade focus: 5.0★ from 132 Google reviews, listed on Google as “Siding contractor”.
- 5.0★ from 132 Google reviews
- Hours
- Mon–Sun 7 AM–6 PM
Based in Denver, 14 mi away
84/100CR ScoreRanked #10 because of its Google rating and availability: 5.0★ from 18 Google reviews, open 24/7.
- 5.0★ from 18 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2345 S Federal Blvd #150, Denver, CO 80219
Based in Aurora, 14 mi away
84/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 85 Google reviews, listed on Google as “Siding contractor”.
- 5.0★ from 85 Google reviews
- Hours
- Mon–Sat 7 AM–8 PM · Sun 8 AM–2 PM
- Address
- 1321 S Blackhawk Way, Aurora, CO 80012
#12 KCJC Painting
Based in Broomfield, 5 mi away
84/100CR ScoreRanked #12 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “Siding contractor”.
- 5.0★ from 38 Google reviews
- Hours
- Mon–Sun 8 AM–5:30 PM
Based in Brighton, 10 mi away
84/100CR ScoreRanked #13 because of its Google rating and availability: 5.0★ from 202 Google reviews, open 24/7.
- 5.0★ from 202 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 8495 County Rd 2, Brighton, CO 80603
Based in Denver, 13 mi away
84/100CR ScoreRanked #14 because of its Google rating and availability: 4.9★ from 369 Google reviews, open 24/7.
- 4.9★ from 369 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2281 S Acoma St, Denver, CO 80223
Based in Aurora, 15 mi away
84/100CR ScoreRanked #15 because of its Google rating and availability: 5.0★ from 13 Google reviews, open 24/7.
- 5.0★ from 13 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Wheat Ridge, 10 mi away
84/100CR ScoreRanked #16 because of its Google rating and availability: 4.9★ from 266 Google reviews, open 24/7.
- 4.9★ from 266 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 11919 W Interstate 70 Frontage Rd Unit 122, Wheat Ridge, CO 80033
Based in Denver, 12 mi away
84/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.7★ from 127 Google reviews, listed on Google as “Siding contractor”.
- 4.7★ from 127 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat–Sun 9 AM–12 PM
- Address
- 6825 E Tennessee Ave # 301, Denver, CO 80224
Based in Longmont, 21 mi away
83/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 715 Google reviews, listed on Google as “Siding contractor”.
- 4.9★ from 715 Google reviews
- Hours
- Mon–Sat 8 AM–7 PM · Sun closed
- Address
- 164 Primrose Ct, Longmont, CO 80501
Based in Denver, 8 mi away
83/100CR ScoreRanked #19 because of its Google rating and review volume: 4.6★ from 1,327 Google reviews, 1,327 Google reviews.
- 4.6★ from 1,327 Google reviews
- Hours
- Mon–Fri 8 AM–8:30 PM · Sat–Sun 9 AM–6 PM
- Address
- 9525 E 40th Ave Unit 160A, Denver, CO 80238
Based in Thornton
83/100CR ScoreRanked #20 because of its Google rating and trade focus: 4.7★ from 27 Google reviews, listed on Google as “Siding contractor”.
- 4.7★ from 27 Google reviews
- Hours
- Mon–Sat 7 AM–6 PM · Sun 10 AM–4 PM
- Address
- 13395 Olive St, Thornton, CO 80602
Based in Cherry Creek, 9 mi away
83/100CR ScoreRanked #21 because of its Google rating and trade focus: 5.0★ from 31 Google reviews, listed on Google as “Siding contractor”.
- 5.0★ from 31 Google reviews
- Hours
- Mon–Fri 8 AM–6 PM · Sat 9 AM–5 PM · Sun 9 AM–6 PM
Based in Denver, 3 mi away
83/100CR ScoreRanked #22 because of its Google rating and trade focus: 4.8★ from 164 Google reviews, listed on Google as “Siding contractor”.
- 4.8★ from 164 Google reviews
- Hours
- Mon–Sat 7 AM–7 PM · Sun closed
- Address
- 6820 Broadway Unit R, Denver, CO 80221
Based in Denver, 3 mi away
83/100CR ScoreRanked #23 because of its Google rating and trade focus: 4.9★ from 127 Google reviews, listed on Google as “Siding contractor”.
- 4.9★ from 127 Google reviews
- Hours
- Mon–Sat 8 AM–5 PM · Sun closed
- Address
- Building 3, 7100 Broadway unit 3-N, Denver, CO 80221
Based in Lakewood, 11 mi away
83/100CR ScoreRanked #24 because of its Google rating and availability: 4.8★ from 293 Google reviews, open 24/7.
- 4.8★ from 293 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1445 Holland St, Lakewood, CO 80215
Based in Lafayette, 12 mi away
83/100CR ScoreRanked #25 because of its Google rating and availability: 4.8★ from 268 Google reviews, open 24/7.
- 4.8★ from 268 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1196 Diamond Cir q, Lafayette, CO 80026
Siding contractors ranked #26 to #50
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 375 ranked siding contractors here; the rest are on their profiles.
Also serving Thornton
20 more siding contractors within 40 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| A & R Roofing Siding & Gutters | 3.0★ (2) | 8 mi |
| a1 exteriors | 5.0★ (2) | 5 mi |
| A1 Painters and services | 5.0★ (2) | In Thornton |
| Adams Siding & Construction | 5.0★ (2) | 6 mi |
| Big Dog Construction Group | 5.0★ (5) | In Thornton |
| Ceres Construction, LLC | In Thornton | |
| CO Roofing & Remodeling | 1.0★ (2) | In Thornton |
| Colorado Complete Exteriors | 1.0★ (2) | 6 mi |
| Colorado Roofing Company | 5.0★ (2) | 17 mi |
| Diamond Restoration | In Thornton | |
| Experts Siding & Exteriors | In Thornton | |
| High View's Seamless Gutters | 5.0★ (2) | 12 mi |
| In & Out Remodeling | 5.0★ (3) | In Thornton |
| JPH Roofing and Siding | 5.0★ (2) | 13 mi |
| Lotus Roofing - Exteriors & Insulation | 4.9★ (61) | In Thornton |
| Marinas Roofing Thornton | 5.0★ (30) | In Thornton |
| Mile High Siding Pros LLC | 5.0★ (2) | 16 mi |
| Roof Geeks | 4.7★ (12) | In Thornton |
| Roofing | 5.0★ (2) | 12 mi |
| Sears Window Replacement | 4.5★ (2) | 12 mi |
How much do siding contractors cost in Thornton?
Typical prices in USD, adjusted for Colorado with a published regional index. Each row names its basis and month.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Siding replacement | $5,260 | $10,960 | $16,770 | Per house: typical range of customer-reported projects. US national range × 0.95 Mountain factor (2025 Cost vs. Value Report) | October 2026 |
How we ranked Thornton siding contractors
We scored 375 Thornton siding contractors on 8 factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. Unknown factors are left out of the score, not counted as zero. Scores last refreshed October 22, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Thornton data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |
Siding contractors in Thornton: frequently asked questions
Who is the best siding contractor in Thornton?
By CR Score, the highest-ranked siding contractor in Thornton, CO is 1-800-HANSONS with a CR Score of 91/100. It has 4.7★ from 808 Google reviews. It is open 24/7. Ace Handyman Services Aurora (#2) and Aloha State Builders, Inc. (#3) follow. We ranked 375 siding contractors on 8 factors, last updated October 22, 2026.
How many siding contractors are there in Thornton?
ContractorsRanked ranks 375 siding contractors serving Thornton, CO. 4 of them are based in Thornton; the rest serve it from nearby towns. Another 20 within 40 mi are listed but not ranked yet. Counts are as of October 2026.
Which siding contractors in Thornton are open 24/7?
39 ranked siding contractors in Thornton post 24/7 hours. The highest-ranked are 1-800-HANSONS (#1), Ace Handyman Services Aurora (#2) and Aloha State Builders, Inc. (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which siding contractors in Thornton work on weekends?
227 of 375 ranked siding contractors post Saturday hours and 102 post Sunday hours. The highest-ranked open Saturdays are 1-800-HANSONS (#1), Ace Handyman Services Aurora (#2) and Aloha State Builders, Inc. (#3). Posted hours are office hours; crews may book weekend jobs separately.
How much does siding replacement cost in Thornton?
Siding replacement typically costs $5,260 to $16,770, with $10,960 typical (Per house: typical range of customer-reported projects. US national range × 0.95 Mountain factor (2025 Cost vs. Value Report)). The range is adjusted for Colorado. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Thornton siding contractors have?
The median Google rating among 375 rated siding contractors in Thornton is 4.9★, with a median of 37 reviews. DaBella has the most, 2,034 reviews, and ranks #32. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank siding contractors?
Each siding contractor gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do siding contractors outside Thornton count in this ranking?
Yes, if they are within 40 mi of the Thornton city center, our service radius for siding contractors. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.
Update log for Thornton
- October 2026: CR Scores recalculated for 375 siding contractors serving Thornton.
- October 2026: 2 duplicate listings merged.
More siding contractors and Thornton pages
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