The siding contractors
worth calling in Southern NH
We reviewed every notable siding company in the region and scored each one on a transparent 100-point method — reputation, manufacturer certifications, workmanship and service — so you can shortlist with confidence instead of guesswork.
- 25
- contractors ranked
- 11
- manufacturer-certified
- 3,500+
- reviews weighed
Top siding contractors in Southern New Hampshire
MGS Construction LLC leads the list this cycle. Each card shows our 0–100 score, the letter grade it maps to, and the company’s verified Google rating — here’s how we got there.
- 1CertainTeed 5-Star
- Manufacturer-certified installer: CertainTeed 5-Star
- Established 28+ years (since 1998)
- 2CertainTeed SELECT ShingleMaster
- Manufacturer-certified installer: CertainTeed SELECT ShingleMaster
- Established 48+ years (since 1978)
- 3
Belgres Group
★ FeaturedJames Hardie Certified InstallerCertainTeed ShingleMaster- Manufacturer-certified installer: James Hardie Certified Installer, CertainTeed ShingleMaster
- Established 17+ years (since 2009)
- 4CertainTeed Master ApplicatorVinyl Siding Institute (VSI)
- Manufacturer-certified installer: CertainTeed Master Applicator, Vinyl Siding Institute (VSI)
- Written workmanship / manufacturer warranty
- 5James Hardie Elite Preferred
- Manufacturer-certified installer: James Hardie Elite Preferred
- Written workmanship / manufacturer warranty
- 6James Hardie ContractorCertainTeed 5-Star
- Manufacturer-certified installer: James Hardie Contractor, CertainTeed 5-Star
- Strong review base — 4.8★ across 78 Google reviews
- 7James Hardie partner
- Manufacturer-certified installer: James Hardie partner
- Written workmanship / manufacturer warranty
- 8
- Written workmanship / manufacturer warranty
- Financing available
- 9
- Written workmanship / manufacturer warranty
- Financing available
- 10James Hardie Elite Preferred
- Manufacturer-certified installer: James Hardie Elite Preferred
- Financing available
- 11
- Written workmanship / manufacturer warranty
- Financing available
- 12James Hardie Elite Preferred
- Manufacturer-certified installer: James Hardie Elite Preferred
- Written workmanship / manufacturer warranty
- 13
- Established 60+ years (since 1966)
- Financing available
- 14LP SmartSide factory-certifiedAlside factory-certified
- Manufacturer-certified installer: LP SmartSide factory-certified, Alside factory-certified
- Established 18+ years (since 2008)
- 15
- Established 59+ years (since 1967)
- Licensed & insured
- 16
- Written workmanship / manufacturer warranty
- Financing available
- 17
- Strong review base — 5★ across 52 Google reviews
- Licensed & insured
- 18
- Written workmanship / manufacturer warranty
- Licensed & insured
- 19
- Licensed & insured
- 20
- Established 41+ years (since 1985)
- Licensed & insured
- 21
- Strong review base — 4.8★ across 64 Google reviews
- Licensed & insured
- 22James Hardie partner
- Manufacturer-certified installer: James Hardie partner
- Written workmanship / manufacturer warranty
- 23
- Established 48+ years (since 1978)
- 24
- Licensed & insured
- 25
- Written workmanship / manufacturer warranty
ⓘ Ratings and review counts are aggregated from third-party platforms (Google, BBB, Manufacturer locators, Facebook). We don’t host individual reviews, and counts can be influenced by the businesses themselves. Our score deliberately blends review volume (log-weighted) with credentials and workmanship, so reviews alone can’t buy a top spot.
Four things we weigh — and how much
Customer reputation
What real customers report
Manufacturer credentials
Factory certifications & licensing
Workmanship & warranty
Experience and what’s guaranteed
Service & local fit
Access, financing & area focus
Find siding pros in your town
Local rankings for Southern New Hampshire communities.
- NashuaBest siding contractors →
- ManchesterBest siding contractors →
- BedfordBest siding contractors →
- MerrimackBest siding contractors →
- HudsonBest siding contractors →
- SalemBest siding contractors →
- DerryBest siding contractors →
- LondonderryBest siding contractors →
- WindhamBest siding contractors →
- MilfordBest siding contractors →
- AmherstBest siding contractors →
- HooksettBest siding contractors →
- LitchfieldBest siding contractors →
- PelhamBest siding contractors →
- HollisBest siding contractors →
- ConcordBest siding contractors →
Compare quotes from top-rated Southern New Hampshire siding pros
Tell us about your siding project and we’ll introduce you to up to three independent, well-reviewed contractors from the list above. It’s free, and you decide who — if anyone — to hire.
- Vetted against our published rating method
- No pushy sales calls — you stay in control
- Local crews who actually work in your town
2 more contractors — not yet scored
These companies install siding in Southern New Hampshire but don’t yet have enough public reviews for us to score them fairly. Listed alphabetically — no score isn’t a negative, just missing data. Own one? Claim your listing.
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Dependable JMR Siding
Siding · Trim · Windows · Gutters
Not yet scored -
Milford Windows and Siding
Siding · Windows · Roofing · Doors · Decks
Not yet scored
Questions, answered
How does Siding Rated decide the order?
Every contractor earns a 0–100 score across four weighted pillars — customer reputation, manufacturer credentials, workmanship & warranty, and service. We publish the exact weights on our methodology page. The order is editorial opinion built from public data, never sold.
Why do manufacturer certifications matter so much?
Siding fails at the details — flashing, fastening, clearances. Programs like James Hardie Elite Preferred, CertainTeed and the Vinyl Siding Institute train and audit installers, and a certified crew is what unlocks the strongest non-prorated material warranties. That’s why credentials carry more weight here than on a general contractor list.
Where do the star ratings come from?
We aggregate public ratings (mostly Google, plus BBB and Facebook). We don’t host or verify individual reviews, and counts can be influenced by the businesses themselves — so our score weights review volume on a log curve rather than taking raw stars at face value.
Is it free for homeowners?
Yes. Browsing is free, and requesting matched quotes costs nothing. You decide who, if anyone, to hire.
I run a siding company — can I be listed?
Yes. Claim or correct your listing to keep details accurate. Verification is free and never changes your ranking position.
Run a siding company in Southern New Hampshire?
Claim your listing to verify your details, add your certifications, and respond to your rating. Verification is free — position is always earned through the method, never sold.
Why you can trust this list →