Expert Home Additions & Remodeling in Eastern CT
Transforming homes in Andover, Coventry & Tolland since 2001.
Building Your Future, Made Simple
We know construction can be overwhelming. From permits to final inspections, Lagace Construction manages every detail so you can focus on the excitement of your new space.
Ready to Discuss Your Vision?
Whether you have blueprints in hand or just a rough idea, we are here to guide you. We offer transparent pricing, clear timelines, and a family-owned touch that treats your home like our own.
Get Your Free QuoteDisclaimer: This calculator provides a rough estimation based on 2026 market averages in Tolland/Hartford County. Actual costs vary based on site conditions and materials. This is not a binding contract.
Our Services
Enhance your space effortlessly whether building new, expanding, or refreshing, our experienced team delivers quality craftsmanship tailored to your vision. From custom garage builds to full restorations, Lagace Construction brings precision and professionalism to every job in Connecticut.
New Home Construction
From foundation to finish, we build custom homes tailored to your land and lifestyle.
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Home Additions
Expand your living space with seamless in-law suites, sunrooms, and extensions.
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Bathroom Remodeling
Spa-like upgrades, tile showers, and efficient fixtures for your master or guest bath.
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Deck Construction
Custom Trex, TimberTech, and wood decks designed for Connecticut outdoor living.
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Garage Builder
Attached or detached garages for vehicle storage, workshops, or extra storage.
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Door Installations
Entry and patio door replacements using Therma-Tru and Andersen products.
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Siding & Roofing
Protect your home with CertainTeed siding and professional roofing services.
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Second Floor Additions
Build up, not out. Add significant square footage by adding a new level to your home.
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Common Questions
Planning & Permits
Do I need a building permit in Andover or Coventry?
Yes. Any structural addition, deck, or major remodel requires a permit. We handle the entire application process with your local building department to ensure code compliance.
How long does a home addition take?
Timelines vary by size. A standard garage might take 4-6 weeks, while a large home addition or second-story build-up can take 3-5 months depending on weather and complexity.
Do you provide architectural drawings?
We work closely with local architects and can help facilitate the design process. If you already have plans, we can build directly from them.
Are estimates free?
Yes, we offer free initial consultations and estimates for home owners in our service area (Tolland, Hartford, and Windham counties).
Service & Materials
What areas do you serve?
We are based in Andover, CT and actively serve Coventry, Tolland, Columbia, Hebron, Marlborough, Mansfield, and surrounding towns.
Are you licensed and insured?
Absolutely. We hold a valid New Home Contractor License (#NHC.0016939) and carry full liability and workers' compensation insurance for your peace of mind.
What materials do you use for decks?
We specialize in both pressure-treated wood and composite decking. We are experienced installers for major brands like Trex and TimberTech.
Can you live in the house during a remodel?
Usually, yes. We take great care to seal off construction zones to minimize dust and disruption to your daily life, though kitchen remodels may require a temporary cooking setup.