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10 Years in Business

Home Additions Built Right in Massachusetts

MZR Construction Inc designs and builds home additions in Massachusetts. Room additions, garage builds, kitchen extensions and full home expansions. Ten years of tying new construction into existing homes without the seam showing.

Get Your Free Addition Estimate Call (617) 952 3986
Licensed Contractor Fully Insured 24/7 Emergency Service Financing Available
Licensed Contractor Fully Insured Written Estimates 24/7 Emergency Service MA Registered Insurance Claims Welcome Financing Available 10 Years in MA
Seam Free Tie In Home addition project by MZR Construction Inc in Massachusetts
One house, not two houses stapled together
About Our Addition Work

Room Additions and Home Expansions in Massachusetts

An addition is the hardest kind of new construction because it has to marry an existing structure. Foundation, framing, roof line, siding and interior finish all have to tie in without looking added on. Getting that seam invisible is the job.

MZR Construction Inc plans the addition against the existing house before framing starts. Load paths, roof geometry, envelope details and interior transitions all get worked out on paper. The result reads as one house, not two houses stapled together.

Structural Planning

Load paths, roof lines and envelope tie in details worked out before framing starts.

Live In Compatible

We stage the work so you can keep living in the existing part of the house during the build.

Finish That Matches

Siding, trim, roof shingles and interior finish sourced to blend with the existing house.

Permit and Inspection

All permits pulled, every inspection scheduled and signed off before we close things up.

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Our Work

Recent Projects

A look at the real work behind the estimates. Click any image to see it full size.

One House, Not Two

Additions That Blend In

A room addition on a Massachusetts home is judged from the outside as much as the inside. If you can see where the addition starts, the job was not designed right.

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Structure Planned First

Load bearing, roof geometry and envelope tie in worked out on paper before the crew swings a hammer.

Match Materials, Not Guess

Siding style, roof shingle color and trim profile all sourced to match, not close-enough substituted.

Livable Work Zones

The old part of the house stays livable through the build. Dust barriers, temp doors and daily cleanup.

Our Process

How a Home Addition Project Runs

01

Assessment and Design

We measure the existing house, review your goals and draft the addition against real load paths.

02

Plans and Permits

Final plans go to the town for permit. Any structural review or setback questions get answered here.

03

Foundation and Framing

Foundation for the addition gets poured and cured. Framing ties into the existing structure and the roof gets dried in.

04

Finish and Walkthrough

Siding, roofing, interior finish, floors and paint tie it all together. We walk it with you before handoff.

What You Get

What a Home Addition Includes

  • Existing structure assessment
  • Plans, permits and inspections
  • Foundation and framing
  • Roof tie in and dry-in
  • Siding and window match
  • Rough plumbing and electrical
  • Insulation, drywall and trim
  • Final walkthrough and punch list
FAQ

Home Addition Questions

A single room addition typically runs three to four months from foundation to walkthrough. A larger multi-room expansion runs five to seven. Weather and inspection scheduling move those windows. You get a written schedule with the estimate.
Yes, in almost every case. We stage the work with dust barriers and temp partitions so the existing part of the house stays livable. There is one short window when we open the connection between old and new, and we schedule that around you.
Yes. If you already have plans from an architect, we build to them. If you do not, we can draw them in-house or bring a draftsman in before permit submission. Permits, structural review and every inspection go through us.
That is the point. Roof pitch, siding style, window trim and interior finish all get matched. If the existing materials are discontinued, we find the closest current match and show you the sample before we order.
We build additions across Massachusetts. Give us your town and ZIP code when you call and we'll tell you right away whether the site is in our route. That call is free.
Yes, at (617) 952 3986 any hour. If storm damage opens up the existing structure or the in-progress addition, we can secure the envelope. Permanent repair or resumption gets quoted after the site is safe.
Yes. When storm or fire damage triggers an addition or reconstruction, we inspect, photograph and write a scope your insurance company can review. You file the claim. We provide the documentation your adjuster requests.
Free Addition Estimate

Ready to Add On to Your Home in Massachusetts?

Tell us what you want to add and where. You get a free written estimate with the plan, the schedule, the phases and the price in one document.

Get Your Free Estimate

No obligation. 2 hour response.

We respond within 2 hours during office hours.