Level 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
Fast, Reliable Chimney Repair Across Hudson
Chimney repair in Hudson typically runs $450-$3,800 depending on whether you need repointing, a crown rebuild, or full stack reconstruction, and most jobs start with a Level 2 camera inspection that same week. We’re the Chimney Repair team at Level Two Chimney Co., and we’ve been dispatching crews to Hudson from our Boston office since 2009. Our technicians know the difference between a 1920s triple-decker near the Assabet River and a post-war ranch off Route 62, and that matters because the repair your chimney needs depends on which Hudson you live in. Call (978) 481-2900 to book a camera inspection with a written price before any work starts.
Why Level Two Chimney Leominster Is Hudson’s Preferred Chimney Repair Company
We’ve completed more than 38,000 chimney inspections and cleanings since 2009, and a significant share of those have been in Worcester County’s older mill towns. Hudson customers find us through word of mouth in the historic neighborhoods around downtown and along Washington Street, where triple-deckers and worker cottages need technicians who understand shared flue systems.
Our reviews consistently mention the same things: the technician texted when en route, the camera footage showed exactly what was wrong, and the written price matched the final invoice. That’s Haven Standard Clause 1, and it’s how we operate on every Hudson job.
Dispatch and scheduling are coordinated from our Boston office, but crews serve Hudson locally with same-week availability for most repairs. We don’t charge a premium for Worcester County distance, and we don’t send technicians who’ve never seen a coal-era flue adapted for a pellet insert.
Every job is backed by our 365-Day Done Right Promise: if it’s not done right, we make it right. No exceptions.
Our Chimney Repair Services in Hudson

Mortar Repointing
Repointing in Hudson’s mill-era neighborhoods runs $18-$28 per square foot of joint surface, with most worker cottages and two-families needing $1,200-$2,400 for a full chase. The freeze-thaw cycling here inland is more severe than closer to Boston, and the original lime mortar in 1880-1925 brick was never meant to handle it. We grind out failed joints to proper depth and repoint with mortar matched to the original compressive strength, not modern Portland that traps moisture and accelerates spalling. In the triple-deckers near the old mill district, we often find that only one unit’s flue has been maintained while the shared masonry crumbles. We repoint the full chase, not just the visible face.

Spalling Brick Repair
Spalling repair in Hudson typically costs $800-$2,200 depending on how many courses need replacement and whether the damage extends to the firebox. The combination of heavy Worcester County snowfall, pronounced freeze-thaw, and the Assabet River corridor’s localized moisture creates perfect conditions for brick face failure. We’ve replaced entire courses in chimneys near the riverbank where efflorescence had been ignored for years. We source matching brick through our Haven buying network and document every course with photos before and after, per Clause 4 of the Haven Standard.

Chimney Waterproofing
Waterproofing a Hudson chimney runs $350-$950 for application after any open mortar joints or spalling are addressed. We use vapor-permeable sealants that let the brick breathe, because trapping moisture inside a 120-year-old chimney is worse than leaving it unsealed. For homes in the low-lying areas near the Assabet River, we often recommend crown sealing and cap replacement as part of the same scope, since river-corridor humidity finds every entry point. The work comes with a written warranty and photo documentation of coverage.

Flashing Repair
Flashing repair in Hudson costs $450-$1,100 for most residential jobs, with full replacement at the chimney-roof intersection running higher if the cricket needs rebuilding. This is the repair we get called about after every major storm: a brown stain appears on the ceiling, and the homeowner assumes it’s the roof. Often it’s step flashing that has pulled away from a spalling brick face, or counter-flashing that was never properly embedded into the mortar joint. We were called to a worker two-family near the old downtown mill district after a tenant’s pellet insert started back-drafting; a Level 2 inspection showed the insert’s flue had been dropped into a chase shared with the adjoining unit’s oil furnace vent, and the common brick had spalled so badly that we could see daylight through the mortar joints. We rebuilt the crown, repointed the shared chase with Gelco mortar, and installed a DuraFlex liner sized to the insert so the two flues no longer fought for draft. The back-draft stopped and the ceiling stain in the neighboring unit - traced to failed flashing, not the flue - cleared after we re-set the flashing and waterproofed the stack.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Before
AfterTrusted Brands We Service in Hudson
We source repair materials through Haven’s buying network specifically to keep Hudson customer prices honest. For liner installations and restorations, we use DuraFlex stainless and HeatShield cerfractory flue sealant. For mortar work and crown rebuilds, we specify Gelco products matched to historic lime-mortar performance. These aren’t upsells - they’re the materials we specify in the written scope before work begins, and we keep common sizes in regional inventory so Hudson repairs don’t wait on shipping.
Common Chimney Repair Problems We See in Hudson Homes

- Shared multi-flue chases in triple-deckers. One tenant adds a pellet insert; only that flue gets cleaned. The shared masonry and neighboring tenants’ flues spall and crack unnoticed until draft failure or water intrusion affects everyone.
- Freeze-thaw mortar failure inland. Worcester County’s harder winters pop mortar joints and crack chimney crowns on unreinforced 1880-1925 brick. Water wicks down into the flue liner and firebox, accelerating damage you can’t see from the ground.
- Coal-era flues mismatched to modern inserts. Original chimneys built for coal, later adapted to oil, now venting wood or pellet stoves - often undersized or completely unlined, creating creosote buildup and draft hazards that a standard sweep won’t catch.
- Storm-driven flashing displacement. Wind and water drive into compromised crowns and displaced caps, then find the gap where flashing meets spalling brick. The first sign is often a ceiling stain after a nor’easter, misdiagnosed as a roof leak.
Pricing for Chimney Repair in Hudson, MA
Here’s what chimney repair costs in Hudson’s market:
| Service | Typical Range |
|---|---|
| Mortar repointing (per sq ft) | $18 - $28 |
| Full repointing, worker cottage/two-family | $1,200 - $2,400 |
| Spalling brick repair (partial chase) | $800 - $2,200 |
| Chimney waterproofing | $350 - $950 |
| Flashing repair | $450 - $1,100 |
| Crown rebuild | $1,400 - $2,800 |
| Partial chimney rebuild (above roofline) | $2,200 - $4,500 |
| Full chimney rebuild | $4,500 - $8,500+ |
Three factors move Hudson jobs within these ranges: access (steep roofs and narrow alleys in the historic core add labor), the extent of hidden damage found during camera inspection, and whether multiple flues in a shared chase need coordinated repair. We deliver a written price before any work starts - always, no exceptions - and we never recommend work without camera evidence you can see for yourself. Some repairs can safely wait a season; we’ll tell you plainly which ones. Call (978) 481-2900 for a free estimate.
We Also Serve Cities Near Hudson

Our crews repair chimneys throughout Worcester and Middlesex counties, including Hudson neighbors in Marlborough, Maynard, Clinton, and Northborough. Each community has its own housing stock and failure patterns - Marlborough’s split-levels present different flashing challenges than Hudson’s mill-era triple-deckers - and we scope every job to the specific structure, not a generic template.
Serving Hudson, MA - Our Local Coverage Area
We’re based in the Hudson area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Chimney Repair in Hudson

Yes, and it’s one of the most common serious issues we find in Hudson’s mill-era rental stock. When one unit adds a pellet insert or wood stove, technicians often clean only that flue while the shared masonry and neighboring flues deteriorate unnoticed, leading to cross-draft problems, creosote odor migration, and structural spalling that affects all units. We inspect the full chase with a camera and deliver a written scope that addresses every flue, not just the one that called. Call (978) 481-2900 for a free estimate - estimates are free.
Hudson’s inland location in Worcester County brings heavier snowfall and more severe freeze-thaw cycling than eastern Massachusetts suburbs, and the original unreinforced concrete crowns on 1880-1925 chimneys weren’t engineered for it. The low-lying Assabet River corridor adds localized moisture that accelerates the damage. We rebuild crowns with proper slope, drip edge, and expansion accommodation, using materials specified for your chimney’s exposure. Call (978) 481-2900 for a free estimate - estimates are free.
Often yes, especially in Hudson’s older neighborhoods where spalling brick faces let step flashing pull away from the chimney. Wind-driven rain finds the gap, runs down the roof decking, and shows up as a ceiling stain that looks like a roof leak. A Level 2 camera inspection confirms whether the source is flashing, crown, or cap failure, and we document it with photos before recommending repair. Call (978) 481-2900 for a free estimate - estimates are free.
The camera tells the story. Repointing fixes mortar joint failure when the brick itself is sound; rebuilding is necessary when multiple courses are spalled through, the wythe is separating, or structural integrity is compromised. In Hudson’s coal-era chimneys, we often find that the inner wythe has deteriorated worse than the exterior suggests. We show you the footage, explain what you’re seeing, and give you a written price for each option so you can decide. Call (978) 481-2900 for a free estimate - estimates are free.
Yes, and it’s often essential for safe operation. Original coal flues in Hudson’s worker housing are typically unlined or lined with terracotta that’s cracked by decades of thermal cycling; adapting them for wood or pellet inserts without proper relining creates creosote buildup and draft hazards. We size DuraFlex liners to the appliance and the fuel type, not the original flue dimension, and we document the installation with photos per Clause 4 of the Haven Standard. Call (978) 481-2900 for a free estimate - estimates are free.
Ready to see what your chimney actually needs? Call Level Two Chimney Co. at (978) 481-2900 to schedule a Level 2 camera inspection in Hudson. You’ll get a written price before any work starts, a documented photo record when it’s done, and the 365-Day Done Right Promise on every repair. Live phone support, 24 hours a day.
Written by Corrine Halstead, Owner at Level Two Chimney Co., serving Hudson and Worcester County since 2009.





Before
After
Before
After
Before
After