East Sussex · England
External Mastic in Pett
External mastic for Pett and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Old sealant gone brittle and cracked
- Sealant that has lost its bond to the brick or render
- Movement joints with cracked, split or missing sealant
Keeping the joints in good condition
A little care helps the new joints last. Our advice:
- Show decorators and builders where the movement joints are
- Keep movement joints as flexible joints, not mortar
- Wash walls gently around the sealant
- Fix overflowing gutters above sealed joints
Follow the cure time we give you before the joint is knocked or disturbed. The surface skins over quickly, but full cure takes longer.
Small splits are the time to act. Then it’s a straightforward cut-out and reseal.
External mastic for homes and businesses in Pett
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 and we use one wherever it does. We work on copings & trims, brickwork movement joints and joints between brick and frames, and the jobs we see most are weathered mastic that no longer stretches and rigid filler in a joint that should flex.
Around Pett, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water normally gets in.
You get a 12-month guarantee, the same in Pett as everywhere else we work.
- Place
- Pett (TN35)
- Wider area
- East Sussex
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026

Common problems we fix in Pett
The wrong product in a moving joint is a classic cause. A high-modulus or general-purpose sealant can be too rigid for a busy joint, and it tears off the sides.
People usually contact us when they notice something like this:
- Joints with sealant missing in places
- Rigid filler in a joint that should flex
- Panel joints letting water in
- Cracked joints where brick meets render or frames
For an older house near a landmark such as St Mary & St Peter, the joints between older walls, newer extensions and the roofline need a sealant that can move.
What your quote should include
- What happens if they find a problem under the old sealant
- How much experience the applicator has
- Which sealant they’ll use, and why
- Which colour the sealant will be
Walls and rooflines in Pett
Pett is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on movement joints and outside wall joints, especially on the side facing the sea. Historic houses like Lamb House (about 4.7 miles north-east) are a reminder that the area around Pett 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.
If you let a flat or house near Three Oaks station, split movement joints are easy to miss on a rental until damp shows inside.
Pett is about 5 miles east of Hastings, in East Sussex. We carry out external mastic for householders, landlords and businesses in Pett and nearby, as part of our work across East Sussex. 289 places in East Sussex are on our list. We also work in Brighton, about 35 miles from Pett.
Postcode districts we cover here for external mastic: TN35. We cover properties on Elms Lane, Pett Road and Chick Hill. If you’re just outside Pett, we cover Fairlight Cove (1 mile south), Friar's Hill (1 mile west), Guestling Green (2 miles west), Fairlight (2 miles south-west) and Guestling (2 miles west). Within a short drive, we also cover Hastings (5 miles west), Bexhill-on-Sea (9 miles west), St Leonards (6 miles south-west), Hastings Old Town (4 miles south-west), Belmont (4 miles south-west) and Hollington (5 miles west).
Near you in Pett
Around Pett, our work takes us to homes and buildings near The Royal Oak Inn. Pett’s nearest station is Three Oaks station, about 2.5 miles west. Well-known places in the area include Conquest Hospital (4.5 miles west) and Winchelsea Court Hall Museum (2.7 miles north-east). Not far away are Rye Harbour Nature Reserve.
Towns and villages near Pett
What else we do in Pett
What we do, step by step
Every visit runs the same way: we check the joints, protect the area around them, carry out the job and clear up. Most jobs take anything from a few hours to several days, depending on the building. Somewhere like Pett needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
Before we arrive
- Tell us if parking is tricky
- Mention any tricky access
- For indoor joints, keep the area dry beforehand if you can
Getting a quote
To get a quote, call 0345 464 0079 or send us an email with the location and a short description of the problem. You’ll have a clear quote before any work starts.
Related advice
Landlord and commercial work in Pett
For anyone letting property in or around Pett, jobs at different addresses can go on one quote. Send us the addresses and the work at each.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Why it’s worth doing now in Pett
A properly done movement joint is an even line in a colour that suits the wall. A rushed bead with no backing looks untidy and does not last so it’s worth doing right. In a small place like Pett, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please phone 0345 464 0079 or drop us an email.
Why choose Mr Mastic in Pett
- Every job guaranteed for a year
- We are fully insured
- We leave the area clean and tidy
- Approved under the ARBOMaster scheme
Read our cost guide and what customers say.
Should I try it myself first?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
What affects the quote in Pett
Call for a quick quote. The main things that affect it are:
- The size of the job
- The old material and how stubborn it is
- Which sealant suits the joint
- Any mould that needs treating
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we’ll go through it with you.
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:
- Any access issues, like height or stairs
- Roughly how big the job is
- Whether it has been sealed before
- What’s wrong with the joints now
There’s no standard price list. Instead, we send you a clear quote for your job. To get started, call 0345 464 0079 or send us an email.
Common questions in Pett
Does living near the coast affect external mastic in Pett?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Do you cover smaller places like Pett?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
How long does the job take?
As a guide, most jobs take a few hours for a handful of joints, longer for a whole elevation. Bigger jobs take longer, and we’ll say how long yours will take.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Do you work for letting agents?
Yes. We work for homeowners, landlords, letting agents, businesses and hotels.
What is backing rod for?
Backing rod goes into deeper joints as a matter of course. It controls the depth and stops the sealant bonding to the back so the bead can stretch.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we will tell you what we’re using.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
