East Sussex · England
External Mastic in Doleham
Professional external mastic in and around Doleham, with every bit of old sealant taken out first and a 12-month guarantee.
- Joints pointed up with cement by mistake
- Hard, crazed mastic that has stopped moving
- Joints with sealant missing in places
Your questions about external mastic in Doleham
Can you help a landlord with a rental near Doleham station?
Yes. We work for landlords and agents as well as householders. Just ring 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear price.
Do you cover Doleham for external mastic?
Yes, Doleham is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or send us an email and let us know what needs doing.
What is backing rod for?
We fit closed-cell backing rod wherever the joint depth needs controlling. It sets the sealant depth and prevents three-sided bonding.
How do you reach high-level joints?
It depends on the building. Where joints can be reached safely, we’ll do them. Tell us about the building and we’ll confirm what access is needed.
Can you match the colour of my brickwork?
There’s a good range of exterior colours, including greys, browns, whites and stone tones. We choose the closest to your brick or render.
How long will you be here?
It depends on the size of the job, but most jobs take anything from a few hours to several days, depending on the building. We’ll tell you when we quote.
Can you seal over the old sealant?
No. Fresh sealant does not stick to old sealant, and it traps any mould or water underneath. We remove it all first.
Is it OK to fill a movement joint with cement?
No. A mortar-filled joint cannot move, so the wall cracks somewhere else instead. It needs a flexible sealant over backing rod.
External mastic for homes and businesses in Doleham
External mastic is a job where short cuts show quickly. New sealant over old, joints packed with mortar and beads with no backing rarely last long. We take the old material out and do it properly. If you are dealing with weeds or debris growing in open joints and gaps where render, brick and frames meet, we can put it right, whatever the surface.
Outside joints can only be sealed when they’re dry, so work in Doleham is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.
Every job comes with a one-year guarantee.
- Place
- Doleham (TN35)
- Region
- East Sussex
- Guarantee
- One year on every job
- Price
- A clear price before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Surface by surface
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. We reseal their joints with backing rod and a flexible product.
Cladding and façade panels
Metal and composite panels move a lot with temperature, so the joints work hard every day. The sealant is chosen with that in mind.
How it works
On the day, there’s very little for you to do. Show us the job and we will take it from there. The job generally takes anything from a few hours to several days, depending on the building. Somewhere as small as Doleham, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- Old sealant and any debris are cut and raked out.
- We clean both faces of the joint and prime them where the product calls for it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Mention if the joints have been sealed before
- Keep children and pets away from the work area
Ask for a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. When it suits you, call 0345 464 0079 or drop us an email.
Advice
Aftercare tips
No joint lasts for ever, but care makes a real difference. A few tips:
- Check external joints each spring
- Ask before painting over external sealant
- Keep soil, plants and ivy away from the joints
- Keep water from gutters off the wall
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They should be kept open and resealed, not filled.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established, so it’s worth resealing at the first signs.
Why act early in Doleham
Resealing a run of joints in one go is usually better than patching one at a time. Joints of the same age tend to fail together and it means sorting access once. In a small place like Doleham, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re not sure whether it needs doing, call 0345 464 0079 or email us for an honest opinion and a quote.
What you get with us
- White, clear, grey or another colour, product permitting
- Full insurance on every job
- Neat joints and a tidy finish
- 12-month guarantee on every job
External mastic in Doleham: local notes
Historic houses like Durhamford Manor (about 3.9 miles north-west) are a reminder that the area around Doleham has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For landlords with property near Doleham station, split movement joints are easy to miss on a rental until damp shows inside. Homes close to The Parish Church of St George include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
Doleham is about 4 miles north-east of Hastings, in East Sussex. For external mastic in and around Doleham, it’s easy to get a quote: please phone 0345 464 0079 or send us an email. We’re based in Crawley and cover East Sussex, Doleham included. Doleham is one of 289 places in East Sussex we cover for external mastic. For nearby work, see our Brighton page, about 33 miles away.
Jobs for external mastic in TN35 works the same way as everywhere else we cover. Streets in the area include Doleham Lane and Doleham Close, all of which we cover. If you are just outside Doleham, we cover Three Oaks (1 mile south-east), Broadland Row (2 miles north-east), Broad Street (2 miles east), Broad Oak (2 miles north) and Udimore (3 miles north-east). Further out, we also cover Hastings (4 miles south-west), Bexhill-on-Sea (8 miles south-west), St Leonards (5 miles south-west), Hastings Old Town (4 miles south), Belmont (4 miles south) and Langney (15 miles south-west).
Near you in Doleham
There’s a railway station in Doleham itself: Doleham station. Well-known places in the area include Conquest Hospital (2.9 miles south-west) and Barn Theatre and Museum (1.8 miles south-west). For a walk, there’s Church Wood and Robsack Wood.
What affects the cost of external mastic
Jobs vary more than people expect. The main factors:
- Whether the work is at height
- The type of sealant required
- The old material and how stubborn it is
- Working hours on commercial sites
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs. Call for a quick quote and we will explain what it covers.
Helping us quote
Photos by email are helpful but not essential. Try to tell us:
- Roughly how big the job is
- Any access issues, like height or stairs
- Photos by email, if that’s easy
- What’s wrong with the joints now
To get a quote, call 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.
Places near Doleham
Other services in Doleham
Can I do it myself?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
When something else is needed
Before you book, it’s worth knowing the limits:
- Cracking across the wall rather than at a joint
- Render that’s blown, hollow or coming away
- Cutting new joints into brickwork, which is building work rather than sealant work
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before you book.
Joints and surfaces we work on
- Brickwork movement joints
- Copings & trims
- Concrete & block
- Façade panels
- Render & cladding joints
- Joints between brick and frames