How long has Ryan & Greene Construction been in business?

Ryan & Greene Construction has been serving New England for over 30 years, since 1994. We are a local, family-owned business with extensive experience in residential and commercial construction.

What areas do you serve?

We serve Southern New Hampshire and the Merrimack Valley area. Our service area includes communities throughout these regions for all our construction and remodeling services.

Do you offer free estimates?

Yes, we provide free estimates for all our services including kitchen remodeling, bathroom renovation, home additions, deck construction, and commercial projects. Contact us at 603-797-9224 to schedule your free estimate.

Are you licensed and insured?

Yes, Ryan & Greene Construction is fully licensed, insured, and OSHA certified. We maintain all necessary certifications and insurance to protect our clients and ensure quality workmanship.

Do you take home addition projects in Dunbarton, NH?

Yes. Additions and whole-house remodels are the bulk of what we do in Dunbarton, including primary suite additions, in-law suites, and second-story builds on existing capes and colonials.

How does septic affect an addition in Dunbarton?

Any addition that adds a bedroom generally requires NHDES review of septic capacity. We check the existing system and permit history before design so the septic work is in the budget from day one, not discovered halfway through.

Is Dunbarton too far from your shop?

It is a longer run than our Rockingham County work, about 55 minutes, so we schedule Dunbarton projects as continuous full-crew builds rather than stop-and-start visits. That usually finishes the job faster than a local contractor juggling several sites.

How long does an addition take?

Four to nine months from contract, depending on size and complexity. Design and permitting take six to twelve weeks; construction takes another three to six months.

Can we live in the house during an addition?

Yes, almost always. We isolate the addition from the existing home until the tie-in phase and minimize the days when interior walls are open.

Do you handle the design or do I need an architect?

For most additions, we handle the design in-house. For larger or more complex projects we partner with an architect we've worked with for years.

Veteran-Owned·Licensed & Insured in NH·30+ Years

Home Additions in Dunbarton, NH

Primary suite, family room, in-law, and second-story additions designed to match the existing home. Serving Dunbarton from our Plaistow, NH shop, about 55 minutes away.

Home Additions for Dunbarton Homeowners

Dunbarton is a small rural town between Concord, Bow, and Goffstown, and it is exactly the kind of place where whole-house remodels and additions make more sense than moving. Lots are large, homes are spread out on well and septic, and homeowners here tend to plan bigger projects: additions, in-law suites, and full interior renovations done in one coordinated push.

Dunbarton is dominated by custom homes on multi-acre lots, antique capes and farmhouses near the town center, and 1980s-to-2000s colonials along the main roads. Almost everything is on well and septic, which shapes how we scope kitchens, baths, and any addition that adds a bedroom. That context shapes how we approach a home addition in Dunbarton, the layouts we recommend, the materials that hold up, and the timeline we can hit. Most of our Dunbarton additions clients come to us by word of mouth from a neighbor we've already worked for.

Neighborhoods we work in: Dunbarton Center, Kimball Pond, Stark Highway, Montalona Road, Gorham Pond.

What's Included in a Dunbarton Home Additions Project

Architectural design and structural engineering

Foundation: full basement, crawl space, or slab

Framing tied into existing structure with matched roof pitch

Siding, windows, and trim matched to the existing home

Full electrical, plumbing, and HVAC integration

Insulation to current NH or MA energy code

Interior finish: flooring, trim, paint, fixtures

Permit, engineering, and inspection coordination

One-year workmanship warranty

Dunbarton Home Additions Pricing

Real ranges based on actual projects we've completed in and around Dunbarton. Your written estimate is fixed before we start.

Bump-Out

$60k–$120k

100–250 sq ft addition, typically expanding a kitchen, bath, or family room.

Room Addition

$120k–$300k

400–800 sq ft addition: primary suite, family room, or in-law.

Second-Story / Major

$300k–$700k+

Full second-story or 800+ sq ft single-story addition with multiple rooms.

Typical timeline: 4–9 months from contract depending on scope.

Why Dunbarton Homeowners Choose Ryan & Greene

Local crew, fast response

Our shop is in Plaistow, 55 minutes from Dunbarton. Site visits get scheduled within a week, and we don't disappear after the contract is signed.

Permits handled, code-compliant

We pull permits at the Dunbarton Building Department and coordinate every inspection. Veteran-owned, licensed in NH, fully insured, OSHA certified.

Fixed-price contracts

Your number doesn't move unless you change scope. No "we found something" surprise invoices halfway through.

Home Additions in Dunbarton, Common Questions

Other services in Dunbarton

Home Additions in nearby towns

Ready to plan your Dunbarton home addition?

Free in-home consultation, a 3D rendering before any demo, and a fixed-price contract before we touch the house.