Attic Remodeling
Attic Remodeling and Conversion in Massachusetts
By Dioclecio Gomes, Founder & Owner4 min readUpdated October 19, 2026
In This Guide
Mr. Gomes Remodeling finishes and converts attics into bedrooms, home offices, playrooms and primary suites across Central and MetroWest Massachusetts. Before we price anything, we check the three things that decide whether an attic can become a legal room: the framing, the ceiling height and a code-compliant way in and out. You get a written price after a free in-home visit.
An attic conversion adds living space without adding to the footprint of the house. It also comes with more rules than most rooms, because the space was usually built for storage. Below is what we build, how we decide whether your attic qualifies, and what these projects cost. We are a family-owned, licensed and insured contractor based in Northborough since 2003, and we also handle basement finishing and home additions.
What Can You Build in an Attic?
Most of the rooms people want more of:
- Bedrooms, with an egress window or dormer that meets the escape rules.
- Home offices, playrooms and bonus rooms.
- Primary suites with a bathroom, when plumbing can reach the space.
- Dormers to add headroom and light where the roof is too low.
- A permanent staircase in place of a pull-down ladder.
- Insulation, drywall, flooring, wiring, heating and cooling, planned and permitted as one project.
Can Your Attic Be Finished?
Three checks decide it.
1. Framing. Block Renovation explains that a repeating W pattern of webbed boards means engineered trusses, which generally cannot be cut or modified, so truss attics rarely become living space at a reasonable cost. Older homes framed with rafters are usually the better candidates. Floor joists sized for storage may also need reinforcement, which is where a structural engineer comes in.
2. Ceiling height. The model code that Massachusetts' residential code is based on sets the bar. As the City of Boise IRC handout quotes section R305.1, habitable space needs a ceiling height of at least 7 feet. For rooms with sloped ceilings, the required floor area must have at least 5 feet of height, and at least 50 percent of that required floor area must have at least 7 feet.
3. Access. A habitable room needs a real staircase, not a pull-down ladder, and the stair has to fit somewhere on the floor below.
Massachusetts adopts the model code with its own amendments, so we confirm the details with your town's building department before we design anything.
Do Attic Bedrooms Need an Egress Window?
Yes. The Jersey County IRC R310 handout lists the rules for every sleeping room's emergency escape opening: a net clear opening of at least 5.7 square feet, at least 24 inches high and 20 inches wide, with the sill no more than 44 inches above the floor, and it must open from inside without keys or tools. The handout also points out that the minimum width times the minimum height does not reach 5.7 square feet, so a real window has to be larger than both minimums. In an attic that usually means a gable-end window of the right size or a dormer. Block Renovation puts an egress window at $2,500 to $6,000 installed.
Thinking about finishing your attic?
We check the framing, the height and the stair location first, then give you a written price after a free in-home visit.
Get a Free Attic EstimateHow Does an Attic Project Work?
- Free in-home visit. We go up into the attic, measure the height, look at the framing, the insulation and where a staircase could land.
- Engineering if needed. If the joists or rafters need reinforcement, a structural engineer specifies it before we price the job.
- One written price. You get a fixed price and a schedule before work starts.
- Permits and build. We pull the permits, frame, insulate, run the systems, drywall and finish.
- Walkthrough. We walk the finished space with you before we call it done.
How Much Does an Attic Conversion Cost?
Block Renovation's 2026 guide puts a basic finish at $30 to $60 per square foot, a mid-range living space at $60 to $100, and a full conversion at $100 to $150 or more, with a national average around $20,000 to $25,000. Dormers ($8,000 to $30,000), a code-compliant staircase ($3,000 to $10,000) and a bathroom move the number most. Those are national figures; we give you a written price for your attic after the visit. The full breakdown is in our attic renovation cost guide.
The Bottom Line
If your attic has rafters, enough height over enough of the floor and room for a stair, it is often the least expensive way to add a bedroom or office. Call (508) 304-3447 and we will come look.
Get a Free Attic EstimateFAQ
Do you finish attics in Massachusetts?
Yes. Mr. Gomes Remodeling finishes and converts attics into bedrooms, offices, playrooms and suites across Central and MetroWest Massachusetts, including permits, insulation, stairs and dormers.
How tall does an attic need to be to finish it?
Under the model code section R305.1, habitable space needs at least 7 feet of ceiling height. With sloped ceilings, the required floor area needs at least 5 feet and at least half of it needs 7 feet. We confirm the local rules with your building department.
Can an attic with trusses be converted?
Usually not at a reasonable cost. Engineered trusses generally cannot be cut or modified, so attics framed with rafters are the better candidates.
Does an attic bedroom need an egress window?
Yes. Every sleeping room needs an emergency escape opening with at least 5.7 square feet of net clear opening, at least 24 inches high and 20 inches wide, with the sill no more than 44 inches above the floor.
How much does it cost to convert an attic?
Block Renovation puts a basic finish at $30 to $60 per square foot and a full conversion at $100 to $150 or more, with a national average around $20,000 to $25,000. We give a written price after a free visit.