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 build decks oriented for lake views in Hampstead?

Yes — Big Island and Wash Pond decks are a frequent project. We design rail systems that maximize sightlines and detail post locations to clear the view.

Can you handle shoreline-protection rules?

Yes. NH shoreland protection applies within 250 feet of any pond over 10 acres, and we factor it into design and permitting before we start.

Have you worked in my Hampstead neighborhood?

Likely. Hampstead is a frequent destination for us; ask and we'll usually be able to name a recent project nearby.

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 Hampstead, NH

Primary suite, family room, in-law, and second-story additions designed to match the existing home. Serving Hampstead from our Plaistow, NH shop — about 12 minutes away.

Home Additions for Hampstead Homeowners

Hampstead is twelve minutes from the Plaistow shop and a frequent stop for us — the housing is mostly 1980s and 1990s colonials and contemporaries around Big Island Pond, Wash Pond, and the Emerson Avenue area. Lake-adjacent homes here often involve deck and porch projects with a view in mind.

A lot of Hampstead's housing is lake-adjacent — original cottages converted to year-round homes, plus newer colonials with views. Decks, three-season porches, and primary suite additions oriented to the water are common scope. That context shapes how we approach a home addition in Hampstead — the layouts we recommend, the materials that hold up, and the timeline we can hit. Most of our Hampstead additions clients come to us by word of mouth from a neighbor we've already worked for.

Neighborhoods we work in: Big Island Pond, Wash Pond, Emerson Avenue, East Hampstead, Sunset Lake.

What's Included in a Hampstead 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

Hampstead Home Additions Pricing

Real ranges based on actual projects we've completed in and around Hampstead. 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 Hampstead Homeowners Choose Ryan & Greene

Local crew, fast response

Our shop is in Plaistow — 12 minutes from Hampstead. 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 Hampstead 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 Hampstead — Common Questions

Other services in Hampstead

Home Additions in nearby towns

Ready to plan your Hampstead home addition?

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