Home Additions in Danvers, MA

Add Space. Add Value. Add Possibilities.

When your home no longer fits your lifestyle, moving isn’t your only option. At Glen Thompson LLC, we help homeowners expand and enhance their properties through professionally built home additions that blend seamlessly with your existing structure.



As a licensed general contractor serving Danvers, MA and surrounding communities, we specialize in custom home extensions, including room additions, second-story builds, in-law suites, and more. Whether you're looking to add functionality, space, or long-term value, our team delivers high-quality construction that’s built to last.

Living room with white sofas, fireplace, and artwork. Wooden floors and a door to the outside.
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Interior view of a room under construction with drywall and a large window with natural light.
Kitchen under construction with cabinets, windows, and ladders.

Why Add to Your Home?

Adding onto your home is a smart, cost-effective way to solve space issues, increase your property value, and avoid the expense and hassle of relocating. Home additions offer:

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More livable space for growing families

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Dedicated rooms for home offices or hobbies

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Enhanced layout and flow

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Increased resale value

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Greater comfort and flexibility

From multi-room expansions to targeted upgrades, Glen Thompson LLC designs additions that match your goals, budget, and home style.

Our Home Addition Services

Room Additions

Whether you need an extra bedroom, office, or expanded living area, we build single-room and multi-room additions with structural integrity and aesthetic continuity in mind.

Room additions include:

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Master suites

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Guest bedrooms

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Home offices

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Living room expansions

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Hobby or game rooms

Second-Story Additions

Looking to expand vertically instead of out? A second-story addition is ideal for maximizing space on smaller lots. We handle all structural engineering, framing, and integration with existing utilities.

Second-story projects often include:

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Additional bedrooms and bathrooms

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Upstairs laundry

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Loft or play areas

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Second-level master suites

In-Law Suites & Accessory Dwelling Units (ADUs)

If you're welcoming extended family or want to create a private rental unit, we design and build in-law apartments and ADUs that are fully code-compliant and self-contained.

Features may include:

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Private entrances

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Kitchenettes or full kitchens

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Bathrooms and laundry hookups

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Living and sleeping areas

Sunrooms, Porches, and Bonus Spaces

We also build enclosed sunrooms, mudrooms, porch extensions, and other flexible spaces that enhance your lifestyle and increase usable square footage.

The Addition Process

Every project starts with a plan — and we manage each phase from concept to completion.

01

Consultation

We meet to understand your space needs, design ideas, and budget goals.

02

Design & Planning

Our team creates a layout that meets code and complements your home.

03

Permitting

We handle all permit applications and approvals with your local building department.

04

Construction

Our licensed professionals manage all framing, electrical, plumbing, and finishes.

05

Final Inspection

We complete the job to code, clean up thoroughly, and walk through the finished space with you.

Why Choose Glen Thompson LLC?

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Licensed and insured in Massachusetts

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Decades of experience with residential construction

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High-quality craftsmanship and clean job sites

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Transparent quotes with detailed scopes of work

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On-time project delivery

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Local expertise in zoning, codes, and permitting

We don’t just build structures — we build relationships. When you work with Glen Thompson LLC, you get a team that listens, delivers, and stands by its work.

Service Areas

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Peabody

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Beverly

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Salem

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Middleton

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Topsfield

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Wenham

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And nearby communities throughout Essex County

Ready to Add More to Your Home?

Let’s create a space that works better for you and your family. Whether you need one more room or a full second story, Glen Thompson LLC brings the knowledge and craftsmanship to get it done right.