Essex · England
External Mastic in Great Chesterford
External mastic in Great Chesterford from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Panel joints letting water in
- Old sealant gone brittle and cracked
- Rigid filler in a joint that should flex
Common questions in Great Chesterford
Can you do external mastic in Great Chesterford?
Yes. We work across London and the South East, and Great Chesterford is part of that. Just call 0345 464 0079 or send us an email with a few details of the job, and we will send you a clear quote.
Can you help a landlord with a rental near Great Chesterford station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before work begins.
Can you seal joints between render and window frames?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. We pick a colour that works with both materials.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Is it worth trying it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.
Will it make a mess?
No. The area is protected while we work and cleaned up afterwards.
How much does external mastic cost in Great Chesterford?
It depends on the job, so we quote each one individually. To get one, phone 0345 464 0079 or email us with a short description of the job.
About our external mastic in Great Chesterford
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Porous or awkward surfaces are primed where the sealant needs it. If you’re dealing with movement joints filled with mortar instead of sealant and rain getting behind render or cladding at a joint, we can help.
In and around Great Chesterford, older properties sit alongside newer ones, each with its own outside joints. Older gutters and trims need their joints resealed; newer brick and render need their movement joints kept sound.
The work is covered for a year after we finish. If there’s a problem with it, please ring 0345 464 0079 or send us an email.
- Where
- Great Chesterford (CB10)
- Wider area
- Essex
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Towns and villages near Great Chesterford
Other services in Great Chesterford
How we quote for external mastic
Jobs vary more than people expect. What affects the quote:
- Working hours on commercial sites
- Any mould that needs treating
- Whether old sealant or filler has to be cut out
- Which sealant suits the joint
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.
What to tell us for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- The address or postcode of the job
- How many joints, rooms or windows are involved
- If someone has resealed it before
- Photos by email, if that’s easy
We quote each job on its own. Just call 0345 464 0079 or email us with the details, and photos are welcome.
What sealant work cannot fix
It helps to know what we cannot do too:
- Walls that need new movement joints cut into them
- Rising or penetrating damp from elsewhere in the wall
- Cracked brickwork or render that needs a builder or plasterer
Not sure which it is? You can call 0345 464 0079 or drop us an email and we’ll tell you honestly.
What we seal
- Copings & trims
- Brickwork movement joints
- Render & cladding joints
- Joints between brick and frames
- Façade panels
- Concrete & block
DIY versus a professional finish
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
What external mastic looks like in Great Chesterford
Historic houses like Audley End House (about 3.1 miles south) are a reminder that the area around Great Chesterford has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For site and facilities teams at buildings such as Great Chesterford Church of England Primary Academy, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Homes close to Church of All Saints include some older properties, and the joints between older walls, newer extensions and the roofline need a sealant that can move. For landlords with property near Great Chesterford station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Great Chesterford is about 4 miles north-west of Saffron Walden, in Essex. Homes, rented property, offices and hotels in Great Chesterford is covered for external mastic, old or new, large or small. The work is guaranteed for a year. We cover 644 towns and villages across Essex. We also work in Chelmsford, about 26 miles from Great Chesterford.
We work across CB10 for external mastic and the streets around it. If you need external mastic at a property on High Street, London Road and Carmel Street or a nearby road, we can help. If you are just outside Great Chesterford, we cover Ickleton (1 mile north-west), Hinxton (2 miles north-west) and Elmdon (3 miles south-west). Larger places within reach include Saffron Walden (4 miles south-east), Great Dunmow (15 miles south-east), Stansted Mountfitchet (11 miles south), Elsenham (10 miles south), Church End (15 miles south-east) and Thaxted (10 miles south-east).
What’s near Great Chesterford
Locally, jobs take us to homes and businesses close to Old White Horse pub and the streets around them. There’s a railway station in Great Chesterford itself: Great Chesterford station. A little further out are Saffron Walden Museum (3.2 miles south-east) and Saffron Walden Community Hospital (3.7 miles south-east). The countryside around Great Chesterford includes Rivey Hill and Hales and Shadwell Woods.
Landlord and commercial work in Great Chesterford
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will give you a quote.
Why act early in Great Chesterford
Resealing a run of joints in one go is usually better than patching one at a time. They’ve weathered the same way and it means sorting access once. Around Great Chesterford, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
The cost reflects the work involved, not guesswork. That is why we ask a few questions first and agree the price before starting.
Why Great Chesterford clients choose us
- Neat joints and a tidy finish
- Domestic, commercial and hotel work
- Sealant colour chosen to suit
- We are fully insured
Read our cost guide and what customers say.
What the job involves on each surface
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. The movement joint takes that up, so its sealant has to stay flexible.
Joints between dissimilar materials
Joints where frames, sills or panels meet the wall are common leak points. The old joint is removed and a sealant that bonds to both sides goes in.
The process
The work is kept neat and contained to the joints we are treating. The job generally takes a few hours to a few days, depending on the length of joint and the access, and we tell you how long to leave it before we go. In a smaller place like Great Chesterford, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- Joint faces are cleaned back and primed if the sealant needs it.
- Backing rod sized to the joint goes in to set the depth.
- We apply the sealant, tool it and check the whole run.
Getting ready for the visit
- Mention if the joints have been sealed before
- Try not to wet indoor joints just before the visit
- Keep pets and children clear of the area while we work
How to get a quote
For a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.