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Fence Companies for Installation and Repair in Chelmsford, MA
In Chelmsford a building permit comes into play only for a fence taller than seven feet, but a town bylaw keeps street corners clear for drivers, and the Center Historic District and wetland rules can shape where and how a fence goes. Call (978) 800-2452 or use the form. A person reads every request and replies with what happens next.
- Free for homeowners
- Chelmsford permit, pool and wetland fence notes
- From North Chelmsford to the Center
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Fences in Chelmsford
Which fence project is yours?
Wood Fences
Privacy, picket, stockade and split-rail fences in cedar or pressure-treated lumber, new or replaced.
Vinyl Fences
Low-upkeep PVC privacy, semi-privacy and picket fences, with matching gates.
Chain Link & Aluminum
Galvanized or coated chain link and ornamental aluminum, including pool enclosures built to code.
Fence Repair
Leaning or rotted posts, sagging gates, storm-damaged sections and broken pickets or panels.
Fencing in a new pool?
(978) 800-2452Tell us the pool type and roughly how much fence it needs, and we'll pass your request to a fence contractor familiar with Chelmsford's 48-inch rule and locking gates.
Permits
Fence permits in Chelmsford
Seven feet is the trigger. The Building Department's FAQ page states that "Fences over 7 feet in height require a building permit." The FAQ says nothing more about shorter fences, so ask the department if you are unsure about yours. Height is not the only rule, either: the corner bylaw and the wetland rules below apply whatever the fence measures.
Applying for a taller fence. Chelmsford takes permits through PermitEyes, as its permit procedures page explains. The town posts no fence fee of its own; the undated residential schedule on the Permit Fees page sets a minimum fee of $150, adds $15 per $1,000 for cost above $10,000, and allows a $100 reinspection charge.
- Building permit
- Fences over 7 ft
- Residential fee (undated)
- $150 minimum; $15 per $1,000 above $10,000
- Corner lots
- Clear 2 1/2 to 10 ft high within 20 ft of the corner (§142-38)
- In-ground pool fence
- At least 48 in, locking gate
- Filing
- PermitEyes portal
State rules in a paragraph. The Massachusetts residential code, 780 CMR R105.2, lists "Fences not over seven feet" high as work that needs no state building permit, and the state contractor chart says a fence under seven feet needs neither a permit nor a construction supervisor license (HIC contractor resources). Companies that build fences and nothing else don't have to register as home improvement contractors, so the Guaranty Fund, which only covers registered firms, usually isn't an option; a written contract is still wise. The fuller picture is on our Massachusetts rules page.
Call before you auger. Drilling post holes is excavation under c.82 §40, which names augering. Give Dig Safe at least 72 hours' notice, not counting Saturdays, Sundays or legal holidays, and no more than 30 days (c.82 §40A). Dig Safe tells property owners and contractors that both must notify it (How It Works), lists a fence on your own land among its examples, and offers the 811 service free.
Last verified November 2026. Fees, restrictions and deadlines on this page are due for re-checking by November 2027. New England Fence Pros refers homeowners to fence contractors; we don't install fences or file permits.
Height and placement
Height limits, setbacks and corner lots in Chelmsford
A town-wide corner rule. Chelmsford's sight-line rule sits in its general bylaws rather than its zoning. Article V of Chapter 142, Vision Obstructions, added by Town Meeting in October 2000, says that "nothing shall be erected, placed, planted or allowed to grow" so as to block drivers' vision "between a height of 2 1/2 and 10 feet above grades of the intersecting streets." The protected area is the triangle bounded by the street lines and a line joining points 20 feet along each of them (§142-38). Buildings already standing when the article took effect are exempt; fences and hedges are not mentioned as exempt.
What a violation costs. Under §142-39, as amended in June 2021, the fine is $50, each day counts as a separate offense, and no penalty applies until the Select Board has given 30 days' written notice. The Select Board or its designee, the police and the DPW Director can enforce it. A solid six-foot fence or a tall arborvitae row right at a corner is the classic case, so pull the corner section back or drop it below 2 1/2 feet.
Zoning and the lot line. The town's zoning bylaw refers to fences in several sections, including its definition of a yard, as the eCode360 index shows. We have not summarized those sections here, so ask the Building Department about any height or yard limit for your zoning district. Where the property line falls is for a survey or the town to confirm, not the fence crew.
Pools
Pool fences in Chelmsford
Chelmsford spells out its pool expectations on the Building Department's FAQ page. Both in-ground and above-ground pools need a building permit. The edge of the pool must be 10 feet from side and rear lot lines and 10 feet from the house, garage, shed or any other structure. For an in-ground pool, "In-ground pool fencing must be minimum of 48 inches in height with a locking gate." The FAQ says above-ground pools don't need a fence but must have a ladder that locks when the pool isn't in use. The town's swimming pool bylaw, adopted in 1998, reads more strictly: every outdoor pool at least two feet deep and 200 cubic feet in capacity must be completely surrounded by a fence or wall at least four feet high unless the pool wall is four feet or more above grade at all points, with self-closing, self-latching gates whose latch sits at least four feet above the ground (swimming pool bylaw). Ask the Building Department how it applies both to an above-ground pool. Any pool decking has to meet the building setbacks for the zone and any conservation restrictions.
At the state level, pool barriers follow the International Swimming Pool and Spa Code as adopted in 780 CMR. Federal guidance from the CPSC, which is advisory, adds detail on gaps and gates: no opening a 4-inch sphere can pass through, and self-closing, self-latching gates that swing outward from the pool (CPSC Pub. 362).
Historic districts and wetlands
Historic districts and wetlands in Chelmsford
The Center Historic District. Chelmsford adopted its local historic district bylaw, Chapter 68, on May 8, 1975, under the state's Chapter 40C. The exclusions listed on the town's code page are paint color, roof color, rebuilding in kind after a fire or storm begun within a year, and storm and screen doors and windows. Fences and walls are not on that list. State law defines a structure in a historic district to include a fence or wall and lets each town decide whether to exclude them (c.40C §5, §8). If your house is in the Center district, check with the Historic District Commission before a visible fence goes up.
Wetland buffers. The Wetlands Bylaw, Chapter 187, prohibits disturbance of any area within 25 feet of a resource area (§187-5D) and impervious surface within 30 feet; on lots of 40,000 square feet or more it also keeps buildings 50 feet back. The town's Wetland Regulations (effective September 15, 2015) are friendlier to fences than many: section 3.2 lists "Fencing, provided it will not constitute a barrier to wildlife movement" with stone walls and cordwood among minor activities in the buffer zone. Ask whether your design counts before choosing materials. The 25-foot no-disturbance strip still matters for post holes, so bring the Conservation office in early.
Chelmsford's homes
Postwar subdivisions around a colonial center
Most of Chelmsford's yards date from a building boom. The town's 2010 Open Space and Recreation Plan says single-family home development peaked in the 1960s and 70s, while homes in the Center date back to the 18th century, and the 2025 Open Space and Recreation Plan counts about 68% of housing as detached single-family. So most fence jobs here enclose a postwar suburban yard, while a smaller set of old Center properties starts with the historic district.
The 2010 plan names North, South, East and West Chelmsford as former villages around the Center. On any of them, a lot with two street frontages brings the 20-foot vision triangle into the layout.
FAQ
Chelmsford fence questions
When does a Chelmsford fence need a building permit?
The Building Department's FAQ answers it in one line: fences over 7 feet in height require a building permit. Applications go through the town's PermitEyes portal. Zoning and the corner vision rule still apply to shorter fences.
What fence does Chelmsford require around a pool?
For an in-ground pool, the FAQ says the fence must be at least 48 inches high with a locking gate. The FAQ says an above-ground pool needs no fence but must have a locking ladder, while the town swimming pool bylaw calls for a fence or wall at least four feet high around any outdoor pool at least two feet deep unless the pool wall is four feet or more above grade, so ask the Building Department. Both kinds of pool need a building permit, and the pool edge must be 10 feet from side and rear lot lines.
Can a privacy fence go right up to the corner of my Chelmsford lot?
Not at full height. The Vision Obstructions bylaw (section 142-38) keeps anything between 2 1/2 and 10 feet above the street grades out of the triangle formed by points 20 feet along each street line. After 30 days' written notice from the Select Board, a violation can cost $50 a day.
I live near a brook in Chelmsford. Can I still fence the yard?
Often, with care. The wetland regulations list fencing that won't block wildlife movement among the minor activities allowed in the buffer zone, but the bylaw bars any disturbance within 25 feet of a resource area. Talk to the Conservation office before digging post holes.
What does it cost me to use New England Fence Pros?
Nothing. Asking is free for homeowners; the contractor prices the job, and the price and contract are between you and them.
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