8 checked · 3 we'd call first
Flemington, Hunterdon County
25 years of local addition and dormer work with a named owner (Frank Armstrong) and consistent 4.9 to 5.0 review scores. No BBB file exists to cross-check, so ask for local references directly. Registration pulled directly from the state registry: Active.
Flemington, Hunterdon County
Design and construction under one roof, 28 or more years in Flemington, and a top-quartile BuildZoom score. No BBB letter grade, so their GuildQuality and Houzz reviews are the best third-party check. Registered as Bryhn Construction Inc; registration pulled directly from the state registry: Active.
Flemington, Hunterdon County
Owner-run, EPA Lead-Safe and WEDI certified, strong 4.8 Angi score with reviews citing careful framing/inspection work, caveat: the "Best of Hunterdon" claim is unverified, don't cite it as fact. Credential verified against the state registry, date shown.
| Company & services | Based in | NJ HIC # | Registry status | BBB | Reviews (as reported) |
|---|---|---|---|---|---|
| Armstrong Interiors LLC Registered as Armstrong Interiors, LLC Room additions & bump-outs · Dormer additions · Garage conversions · Kitchen remodeling · Bathroom remodeling · Basement finishing · Custom carpentry | Flemington In county | 13VH00127500 | ✓ Active · 2026-07-16 | Not checked | 5.0 (Angi); 4.9 (Houzz) |
| Bryhn Design/Build Home additions · Whole-home remodels · Kitchen remodeling · Bathroom remodeling · Master suite design-build · Outdoor living spaces · In-house interior design | Flemington In county | 13VH00024500 | ✓ Active · 2026-07-16 | Not checked | 5.0 (Houzz); 100 reviews (GuildQuality/company claim) |
| RJO Home Improvements LLC Kitchen remodeling · Bathroom remodeling · Additions & deck construction · Interior renovations · Exterior work | Flemington In county | 13VH06140800 | ✓ Active · 2026-07-14 | Not checked | 4.8 (Angi) |
| CB Construction Inc. Registered as CB Construction, Inc. Additions · Kitchens · Bathrooms · Whole-house remodeling · Restorations | Whitehouse Station (Readington Twp) In county | 13VH01237900 | ✕ Expired · 2026-07-14 | Not checked | |
| Iaione Contracting Kitchen & bathroom renovations · Additions & room expansions · Basement finishing · Decks · Masonry & stone veneer · Tile, drywall, windows/doors · Concrete & patios | Hackettstown | 13VH10457000 | ✓ Active · 2026-07-14 | Not checked | 5.0 (HomeAdvisor); 4.9 · 12 reviews (Birdeye) |
| Robert G Jones Restorations Bath & kitchen remodels · Whole-house remodels · Renovations · Custom projects | Lambertville In county | 13VH01299100 | ✕ Expired · 2026-07-14 | Not checked | 5.0 (Angi) |
| Streamline Kitchens and Baths, Inc. Kitchens · Bathrooms · Windows & doors · Tile & flooring · Decks · Sunrooms · Additions | Flemington In county | 13VH11839000 | ✓ Active · 2026-07-14 | Not checked | 2 reviews (Facebook) |
| Freedom General Contracting, Inc. Whole-house remodels · Kitchens & bathrooms · General home improvements · Storm rebuild/restoration work | Doylestown, PA | NJ HIC 13VH08327600 / PA 105182 | … Pending check | Not checked | 11 reviews (Facebook) |
Registry status comes straight from the state's verification system on the date shown, and you can rerun any number there yourself in about two minutes. Review scores are what the named platforms report and we have not audited them. BBB grades as of July 2026. "Based in" is the registered address city, which sometimes differs from where a company says it operates. An active registration is the floor, not an endorsement; the picks we'd call first are above.
Additions and gut renovations: the hires that go through permits, inspections, and your savings. We checked what's checkable on every general contractor we could find serving the county. Every fact on this page names its source and the date we checked.
We pull credentials from the official registries ourselves and print the date next to every status, general contractors doing additions, remodels, and most residential home-improvement work in New Jersey must be registered as a Home Improvement Contractor (HIC), not a traditional 'license' in the trade-exam sense, but a state registration with proof of $500,000+ general liability insurance and workers' comp. Registration numbers follow the format 13VH#######00. Verify any contractor's registration status directly at the NJ Division of Consumer Affairs Home Improvement Contractor registry search: https://newjersey.mylicense.com/verification/ (or start at https://www.njconsumeraffairs.gov/hic/Pages/default.aspx). Do not rely on a number printed on a website, third-party directories in this research (BuildZoom) showed at least one Hunterdon-area contractor's registration flagged expired despite an active-looking web presence.. Picks are editorial judgment on the checkable record: years in the trade, complaint patterns, review consistency, real presence in the county. When a pick has a weak spot, we print it. Here are the full rules.
Per 2026 NJ-wide pricing guides (Jayhawk Construction, The 5th Wall Co.): a standard finished room addition in New Jersey runs about $250-$375/sq ft, basic additions $175-$275/sq ft, bathroom/primary-suite additions $325-$500/sq ft, and second-story additions $300-$550/sq ft. Building out (single-story) is cheaper than building up. NJ prices generally run 15-25% above national averages due to labor and code costs. No Hunterdon-specific pricing source was found, these are statewide figures, treat as directional.
Do it in your browser: check any license · check your quote · the storm-chaser test
For an addition or any major renovation, New Jersey requires the business to be registered as a Home Improvement Contractor (HIC) with the state, this isn't optional, and it's separate from any township building permit. A handyman doing small repairs under a certain dollar threshold may not need it, but framing a new room, adding a dormer, or any structural work absolutely does. Always ask for the HIC number and verify it yourself rather than taking their word for it.
Based on 2026 New Jersey-wide pricing guides, a standard finished room addition runs roughly $250-$375 per square foot, with basic additions starting around $175-$275/sq ft and bathroom or primary-suite additions running $325-$500/sq ft. Building out (a single-story addition) is cheaper than building up (a second story), which can run $300-$550/sq ft. New Jersey prices generally sit 15-25% above national averages because of labor rates and code requirements, get itemized quotes from at least two Hunterdon-area contractors before assuming a number is fair.
Not automatically. BBB accreditation is something a business pays for and applies for; plenty of well-reviewed, properly licensed local contractors in this county simply haven't bothered with it. What matters more for a home improvement contractor is an active HIC registration with the state, real (not templated) local references, and a written contract that matches NJ's home improvement contract rules. Treat 'no BBB rating' as a reason to check other sources, Angi, Houzz, direct references, not as a disqualifier on its own.
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