
Services
Home Additions and Interior Renovations in Greater Boston
Additions built to look original to the house, plus finished basements and attics, three-season rooms and interior renovations.
Overview
Home Additions by RNB General Contracting
Additions, dormers and second stories, plus finished attics and basements and porches or decks turned into year-round rooms. Each addition is built to look like part of the original house. We work with your architect or can recommend one, and we handle the permits and inspections.
Fully licensed and insured. MA HIC #196222, CSL #CS-066091. Free estimates.

Recent job
Home Additions: Before and After


What's included
What's Included in an Addition or Renovation
- Additions, dormers and second stories
- Attic and basement finishing
- Three-season rooms and deck-to-room conversions
- Vaulted ceilings, beams and built-ins
- Framing, insulation, drywall and finish work
- Permits, drawings and inspections
Questions
Home Additions FAQs
How long does a home addition take?
Most additions take two to four months, depending on size and the town's permit timeline. Basements and attics are usually 3 to 6 weeks.
Do I need an architect for an addition?
For most additions, yes. We can recommend architects we've worked with. Smaller conversions often only need a designer's drawings.
Will the addition match the house?
Yes. We match the siding, windows, trim and roofline so the addition looks like part of the original house.
More
Other Remodeling Services

Kitchen Remodeling
Full kitchen remodels and updates: cabinets, countertops, tile, lighting and layout changes.
Kitchen Remodeling details →
Bathroom Remodeling
Full bathroom remodels: tile showers, vanities, fixtures, flooring and ventilation.
Bathroom Remodeling details →
Decks & Outdoor Living
Composite and wood decks, railings, patios, walkways, outdoor kitchens and fences.
Decks & Outdoor Living details →Get a Free Remodeling Estimate
Free estimates. Fully licensed and insured. Warranty on our work.
