Home Additions
Typical Timeline
8 to 16 weeks
Permits Required
Building, structural, electrical, plumbing
Best for
Master suites, family rooms, in-law additions
Centerville, MA
General Contractor Services on Cape Cod, MA
Last reviewed May 2026 by WM Construction, Licensed MA General Contractor
WM Construction is a licensed General Contractor Cape Cod firm offering home additions, home renovations, basement remodeling, attic conversion, and military housing contractor services across Barnstable County. Cape Cod homeowners, property managers, and commercial clients hire us when a project involves structural, electrical, or plumbing work that Massachusetts law requires be run under a licensed General Contractor under 780 CMR (Massachusetts State Building Code). Pre 1978 housing stock is common across the Cape, which means federal EPA RRP lead safe protocols apply to most renovation work we take on. Licensed Massachusetts General Contractor since 2016, HIC registered, EPA RRP Lead Safe certified, approved Hanscom Air Force Base vendor since 2015, 5.0 rated across 39 verified Google reviews. Call (774) 224-8561 or visit our office at 1550 Falmouth Road, Suite 26, Centerville, MA 02632.
General Contractor Services for Cape Cod Homes and Businesses
General contractor work on Cape Cod covers projects where multiple trades, structural scope, or Massachusetts permit requirements make coordination under one licensed professional necessary. A whole home renovation, an addition off the back of a 1940s Cape, a basement finish with egress compliance, or a full restoration of a pre 1978 home: each requires a licensed General Contractor managing architects, permits, subcontractors, and finish crews under one contract.
WM Construction (legally WM Construction) is a Cape Cod-based licensed Massachusetts general contractor, not a national franchise, design-build referral platform, or single-trade subcontractor, operating from Centerville since 2016 and an approved Hanscom Air Force Base vendor since 2015. Our work spans residential additions and renovations, commercial construction, and federal contracting at Hanscom Air Force Base, all under one documented process and one year workmanship warranty.
Whole-home general contractor scope on Cape Cod often integrates specialized sub-services. Our Cape Cod siding contractor handles exterior envelope work, kitchen remodeling and bath remodeling cover interior renovation scope, and Hanscom AFB military contracting handles federal-compliance projects.
Cape Cod General Contractor project types at a glance
Home Renovations
Typical Timeline
6 to 16 weeks
Permits Required
Building + trade permits
Best for
Whole-home or multi-room scope
Basement Remodeling
Typical Timeline
4 to 10 weeks
Permits Required
Building + egress compliance
Best for
Family room, office, in-law suite conversion
Attic Conversion
Typical Timeline
4 to 8 weeks
Permits Required
Building + egress + structural review
Best for
Bedroom, office, bonus room build-out
Military Housing Contracting
Typical Timeline
Project-dependent
Permits Required
Federal protocols + base review
Best for
Hanscom AFB and military families
General Contractor Services We Offer on Cape Cod
Home Additions on Cape Cod
Home additions on Cape Cod typically take 8 to 16 weeks. Master suites, family rooms, in-law additions, and dormer pop-ups on Cape-style homes. Licensed General Contractor managing architect coordination, permits, framing, and finish. One year workmanship warranty. Since 2016.
Explore Home Additions on Cape Cod →
Home Renovations on Cape Cod
A licensed General Contractor is required for whole-home renovations on Cape Cod involving structural, electrical, or plumbing work. Interior, exterior, or full-scope projects. HIC certified, EPA Lead-Safe certified for pre-1978 homes. One year workmanship warranty.
Explore Home Renovations on Cape Cod →
Basement Remodeling on Cape Cod
Finishing a Cape Cod basement turns unused square footage into a family room, home office, or in-law suite. Moisture management, egress code compliance, and proper insulation built into every project. Licensed GC, HIC certified, one year workmanship warranty.
Explore Basement Remodeling on Cape Cod →
Attic Conversion on Cape Cod
Converting a Cape Cod attic unlocks usable bedrooms, offices, or bonus rooms from wasted space above your home. Includes framing, insulation, egress compliance, electrical, and finish carpentry. Licensed GC, permit-managed, warrantied work. Since 2016.
Explore Attic Conversion on Cape Cod →
Military Housing Contractor on Cape Cod
Serving Hanscom Air Force Base and Cape Cod military families since 2015. Full compliance with federal contracting protocols, OSHA, EPA, and DoD safety standards. Licensed General Contractor with documented base-work experience, rare among residential contractors.
Explore Military Housing Contractor Services →What to Look for in a General Contractor on Cape Cod
Active Massachusetts GC License and HIC Registration
Massachusetts requires a Construction Supervisor License and a separate Home Improvement Contractor registration for residential renovation work. Ask for both. Verify them on the state website before signing. An unlicensed contractor cannot pull permits and leaves the homeowner without legal recourse if the work fails.
EPA RRP Lead Safe Certification for Pre 1978 Homes
A meaningful portion of Cape Cod housing was built before 1978. Federal law requires the renovation contractor to be EPA RRP Lead Safe certified before disturbing any painted surface. Confirm the firm certification is active, not just one employee's card.
Written Scope, Schedule, and Insurance Documentation
A qualified general contractor should provide a line item scope, a milestone schedule with a committed finish date, and current Certificates of Insurance for General Liability and Workers' Compensation before work begins. Verbal estimates are where residential projects most often fail.
Experience with Cape Cod Coastal Conditions
Salt air, wind driven rain, and freeze thaw cycles behave differently from inland Massachusetts. The wrong fastener or flashing fails inside two years. Ask what the contractor specifies for coastal exposure. Experienced Cape Cod builders have a specific answer.
General Contractor Services Across Barnstable County
WM Construction provides general contractor services across Cape Cod and Barnstable County, including Barnstable, Falmouth, and Mashpee. Yarmouth, Dennis, and the Outer Cape towns of Brewster, Harwich, Chatham, Orleans, and Eastham are within our regular service area, along with Plymouth and the South Shore communities bridging the Cape to the mainland.
Our licensed crew works year round, scheduling residential remodels around seasonal owner calendars and commercial projects around operating hours. Call or request a site visit to discuss scope for your Cape Cod property, or return to our Services hub for the full category stack.
Common Questions About General Contractor Services on Cape Cod
Massachusetts law requires a licensed General Contractor for any residential project that involves structural, electrical, or plumbing work, or any project that requires a building permit. Cosmetic work can be handled by unlicensed trades, but once load bearing elements, systems, or permits enter the scope, a licensed GC is legally required.
The two are separate Massachusetts credentials that often overlap. A Construction Supervisor License is required to supervise structural and permitted work. A Home Improvement Contractor registration is required to contract with a homeowner for residential renovation. WM Construction holds both, the baseline for any compliant residential contractor on Cape Cod.
A qualified general contractor pulls town permits, schedules inspections, and coordinates inspector visits through the course of the project. Permit offices in Barnstable, Falmouth, Mashpee, and other Cape Cod towns each have their own procedures, and a locally experienced GC knows which office wants what paperwork.
A typical process covers a site visit, a written line item estimate, a signed contract with milestone schedule, permit submission, build execution with daily logs, and a final walkthrough with warranty issuance. Explore Home Renovations on Cape Cod for the full project timeline.
Get Started
Explore General Contractor Options on Cape Cod
Researching a general contractor for a Cape Cod home is a significant decision, and we respect the work of getting it right. When you call or request a site visit, we will walk through your project scope, review licensing and timelines, and schedule an onsite visit at your convenience. Licensed Massachusetts General Contractor since 2016. Call or contact us when you are ready.