Gaz and his team have just completed a conversion of our garage into a home office/den. From our initial conversation throughout the project Gaz was great to deal with. I asked him to take care of the whole project — up to and including decorating.…
Chimney Repairs in Chesterfield & Derbyshire
Chimney stack repointing, cap repairs, lead flashing and full chimney rebuilds across Chesterfield, Derbyshire and South Yorkshire. Fixed properly, not just pointed over to hide the problem.
A pointing-over job lasts two winters. A proper repair lasts twenty.
Crumbling mortar gets painted over. Broken chimney pots get filled with expanding foam. Flashing that’s lifted gets pushed back with a handful of cement. These are the quick fixes that look fine from street level and allow water to keep getting in behind them.
We don’t do pointing-over jobs. Chimney repairs done properly mean lime mortar that matches the original, correct lead flashing dressed to the stack rather than stuck down with lap seal, and an honest view of whether the pot, cap and cowl are doing their job. If a chimney needs rebuilding from the haunching, we’ll tell you that too.
What Kind of Chimney Work Do You Need?
From a simple repoint to a full stack rebuild, we carry out every type of chimney repair in-house, correctly, with access arranged before any work starts.
Repointing
Full rake-out of failed mortar and repoint in appropriate lime or hydraulic mortar. No painting over the problem. Correct rake-out before any new mortar goes in.
Lead Flashing
Correct dressing of lead soakers, stepped flashings and back gutters around chimney stacks. Cut and dressed in-house, not pushed back with cement or lap seal.
Pot & Cap Repair
Cracked or missing chimney pots replaced; chimney caps, cowls and birdguards fitted. Uncapped stacks let in water and nesting birds, so we install the correct terminal for the stack.
Full Chimney Rebuild
Stacks that have deteriorated beyond repair rebuilt from the haunching in matching brick. We’ll tell you honestly at the inspection whether repair or rebuild is the right answer.
Every stage of the repair, photographed before access comes down.
A proper chimney repair covers more than repointing. Here’s everything we carry out on a full chimney repair or rebuild, all in-house, all checked by Gaz at close range.
- Scaffold or MEWP access
- Rake-out of failed mortar joints
- Repoint in correct lime/NHL mortar
- Lead flashing: removal and redress
- Chimney pot replacement (where required)
- Chimney cap or cowl installation
- Haunching re-bed
- Flaunching repair
- Brickwork repairs to stack
- Brick replacement (matched where required)
- Lead soaker and step flashing
- Final check and photograph before access down
Work is photographed at close range before scaffold or MEWP is removed. You see the finished repair in detail before we leave the site.
How Your Chimney Repair Comes Together
Four clear stages: honest inspection at the start, photographed sign-off at the end. Here’s what to expect when you work with GSM on a chimney project.
Inspection
Close inspection of the chimney stack: lead flashing, mortar condition, pot and cap all assessed. Honest view given on repair vs rebuild before any access equipment is arranged.
Written Quote
Itemised quote distinguishing repointing from lead work from any structural repairs. No bundling everything into a single line, so you know exactly what you’re paying for.
Access Arranged
Scaffold or MEWP erected and programme agreed. We won’t attempt chimney repairs without the correct access. Working from a ladder at chimney height isn’t safe and doesn’t allow a proper inspection.
Repair & Sign-Off
Work carried out and photographed at close range. Access equipment is removed only once you’re satisfied with what you can see, not before.
Our Chimney Repairs Work
We needed to rearrange the ground floor of our new house to better suit our growing family. GSM construction took down a load bearing wall to create an open plan living family kitchen, and built up a partition wall to separate off a separate snug.…
Gaz and team are all you need for all building works in your home! In my house they worked on areas such as a steel beam installation, tiling, plastering and joinery. Competitively priced, professional, tidy and friendly. Special mention to Matt, a true craftsman and…
I recently used GSM Construction for some work on my home and couldn't be happier with the results. They knocked down an internal wall, plastered the kitchen, and fitted new patio doors — all completed to a really high standard. From start to finish, their…
Chimney Repairs Across Chesterfield & Derbyshire
We’re based in Chesterfield and carry out chimney repairs across a 20-mile radius, close enough that Gaz can attend the site personally and inspect the work at close range before access equipment is removed.
Chesterfield Victorian Terraces
Chimney stacks on every Victorian terrace in Chesterfield, and most haven’t had professional attention in decades. Common problems: failed lead flashing, crumbling mortar joints, and pots that need replacing or capping. We carry out more chimney repairs on Victorian terraces than any other property type.
Peak District Stone Properties
Limestone and gritstone chimneys require matching mortar and correct lime pointing. OPC cement causes spalling damage to soft stone, so we use appropriate NHL mortar on all Peak District properties and understand the conservation area material requirements.
1930s–60s Semis Across Derbyshire
Concrete chimney caps cracking and flaunching failing on properties across Dronfield, Clay Cross and Alfreton. Pot replacement and flaunching repair are common jobs we carry out as standalone work or as part of a wider re-roofing programme.
Post-Re-Roof Chimney Work
Chimney repairs are frequently identified and completed at the same time as a full re-roof. Scaffold is already up, access is safe, and it’s the right time to inspect and repair the stack properly. We include this in the programme on most roofing projects.
Not sure if we cover your area? Call Gaz directly on 07727 263707 and we’ll give you a straight answer.
Chimney Questions Answered
The most common questions homeowners ask us before starting a chimney repair project in Chesterfield and Derbyshire.
Other Services We Carry Out Alongside Chimney Repairs
Chimney repairs are often carried out as part of a wider roofing or brickwork programme, all trades handled in-house.
Roofing & Re-Roofs
Full re-roofs and repairs. Chimney work is commonly carried out at the same time as a re-roof while the scaffold is already in place.
View service →Bricklaying & Pointing
Repointing, brick repairs and new brickwork. Gaz is a time-served bricklayer and all chimney brickwork is carried out in-house.
View service →Period Property Restoration
Full restoration programmes for Victorian and Edwardian properties, chimney repairs often form part of a wider exterior works package.
View service →Chimney problems are easier to fix early.
Gaz will inspect the stack and give you an honest picture of what it needs, and what it doesn’t. We cover Chesterfield, Sheffield, Dronfield and the wider Derbyshire area.