Chelsea, Massachusetts
Second Story Additions in Chelsea, MA
Need more bedrooms in Chelsea without giving up the yard? A second story builds up instead of out, adding a full or partial floor on top of the house. We lay out the engineering, the roof work, the framing, and the systems as one project.
- Serving Chelsea, MA
- Warranty Available
- Free In-Home Estimate
- Insured (General Liability)
Second Story Additions in Chelsea
A New Upper Floor for Your Chelsea House
Bellingham Square holds City Hall, while nearby areas like Addison-Orange and the Box District are dense and mostly residential. For many Chelsea homeowners, building up instead of out adds a full or partial floor while keeping the yard, and an engineer reviews the house before the design begins.
Work on a new floor we take on in Chelsea:
- Second stories for older houses near Bellingham Square
- Walls and footings reinforced where needed
- Wiring, plumbing, and HVAC carried to the new floor
- Roof removal in planned sections
- Temporary shoring while the house is open
Local conditions
Building Up on Chelsea Houses
Low ground near the Mystic River and the creeks can hold moisture, so foundations and basements get checked early. Before a second story is drawn up, we review the panel, water heater, and HVAC, organize materials ahead, and confirm whether the added height needs zoning review.
What we review before design:
- The footings under the bearing walls
- Beams and posts the engineer may call for
- A place for a new staircase
- Shoring during roof removal
- Drains and supply lines for bathrooms upstairs
Going up can make sense if:
- Setbacks leave no room beside the house
- You need space for relatives and guests
- A move does not feel like the right answer
- One wing could carry a new level
- You need more room on the same footprint
We look at the structure on the first visit and involve an engineer before design, so the second story is sized around what the walls and foundation can carry, not around a sketch.
Our process
How We Build a Second Floor in Chelsea
More trades work on a second story than on most other home projects: structural engineers, framers, roofers, electricians, plumbers, and HVAC specialists. In Chelsea, one general contractor keeps them in sequence, so every inspection happens before the next step and the house is closed in quickly.
- 01
Engineer’s Review
An engineer checks the walls, foundation, and load paths before anything is drawn.
- 02
Temporary Support
Temporary posts and beams keep the house stable while parts of the roof come off.
- 03
Opening the Roof
The existing roof comes off in planned sections, with open sections covered at the end of each day.
- 04
Reinforcement
Posts, beams, and footings go in where the engineer calls for them.
- 05
New Floor and Walls
The walls, floor, and roof of the new level are framed and closed quickly.
- 06
Systems and Finishes
Electrical, plumbing, and HVAC reach the new level, followed by drywall, insulation, and trim.
Local details
Second Story Planning Facts for Chelsea
Building up in Chelsea begins with some local basics: the ZIP code, the county, and the distance from our office. The summary below puts them together along with the service area and what often goes in addition to a second story, so you can see the basics before the first visit.
| Detail | Chelsea, MA |
|---|---|
| County | Suffolk County, Massachusetts |
| ZIP code | 02150 |
| Our office | 308 Sutton St, North Andover, MA |
| Service area | Boston and Greater Boston |
| Estimate | No-cost in-home estimate and a written scope |
| Often combined with | New systems throughout the house |
Cost factors
What Affects Second Story Costs in Chelsea
Pricing a second story for a Chelsea house begins with the structure, not the finishes. How big the new floor is, the reinforcement required, removing the old roof, the stairs and openings between floors, bathrooms upstairs, and materials and permits all play a part, so the price follows the engineer’s evaluation.
What sets the price:
- A full or partial new floor
- The structural evaluation and reinforcement
- Temporary support during roof removal
Also priced in:
- Plumbing, wiring, and HVAC upstairs
- Upgrades to the panel or HVAC
- Materials, finishes, and permits
Nearby
Second Stories in Chelsea and Nearby Towns
Not in Chelsea? We also build up in Everett, Revere, Winthrop, and Somerville, as well as across Boston and Greater Boston. Our approach does not change from town to town: an engineer reviews the structure first, the roof comes off in planned stages, and open areas are covered at the end of each day.
Second Story Additions in Everett Second Story Additions in Revere Second Story Additions in Winthrop Second Story Additions in Somerville Second Story Additions in Boston Second Story Additions All Construction Services
Free estimate
Get a Free Second Story Estimate in Chelsea
Considering a second floor on your Chelsea house? We come to the house, study the structure and the roof, talk through what the new floor is for, and send a clear estimate with the scope, materials, and the next steps. The structural evaluation happens before the final price, so no number is a guess.
Request a no-cost in-home estimate online or call (978) 917-9072. No obligation applies, and we will get back to you to set up the visit.
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FAQ
Second Story Additions in Chelsea: Common Questions
Here are short answers to the questions Chelsea homeowners ask about a second story: permits and structural drawings, the engineer’s review, roof removal, and how the free estimate works. Still unsure? Phone our team, and we will explain the options for your house in plain language.
Does building up in Chelsea require a permit?
Yes, it does. Adding a floor requires a building permit backed by structural drawings, and many building departments review the building height and zoning. ML20 General Construction works with the engineer, prepares the applications with the town, and books the inspections from the structure to the final work.
Can my Chelsea house carry a second floor?
It depends on what the engineer finds. Most houses were framed to carry a roof, not a second floor, so the engineer checks the foundation, the walls, and the floor framing before anything is drawn. When more strength is needed, we install beams, posts, larger footings, or new framing so the added weight travels down to the foundation safely.
Will the existing roof be removed?
Most of the time, yes. Temporary shoring holds the house steady while the old roof is removed in planned sections. For a partial addition, only the section under the new level may need to open. Materials are staged beforehand, and the new floor is framed and closed quickly, with the open sections covered at the end of each day.
What happens first when I want to build up in Chelsea?
Everything starts with a no-cost in-home visit: book it online or call (978) 917-9072. We look at the structure and the roof of your Chelsea home, listen to what you want upstairs, and explain how the engineer’s review works ahead of the design work. No obligation applies.