East Sussex · England
Upper Wellingham New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes for homeowners, landlords and businesses in Upper Wellingham. Fully insured, ARBOMaster approved and guaranteed for a year.
- Kitchen sealant that has pulled off the wall
- Plot mastic for developers ahead of handover
- Messy sealant that spoils new finishes
What affects the cost of new build mastic
The price is agreed before any work begins. It’s based on:
- The number of rooms or windows
- Mould in or behind the old joints
- The product the joint needs
- Access and height
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we’ll explain what it covers.
Helping us quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- A few pictures by email, if you can
- How many joints, rooms or windows are involved
- The type of property
- Any previous sealing or DIY work
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that is easy.
New build mastic in Upper Wellingham, done properly
Dust is the enemy of new-build sealant. We clean every joint thoroughly and prime where the surface and product need it, so the sealant actually sticks rather than sitting on a layer of grit. We work on windows & doors, kitchens and skirting & floors, and people most often call us about shower seals failing in the first year or two and gaps between new skirting and floors.
For a small place like Upper Wellingham, the journey and access are planned in advance, and the work itself is the same as on any site.
The work is covered for a year after we finish. If there’s a problem with it, please call 0345 464 0079 or email us.
- Place
- Upper Wellingham (BN8)
- Wider area
- East Sussex
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What happens if it’s left?
It often makes sense to do all the sealant items on a snagging list together. You get one visit and one clear quote to plan around. In a small place like Upper Wellingham, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
What you get with us
- You choose the colour before work begins
- We leave the area clean and tidy
- Anti-fungal silicone where joints get wet
- 12-month guarantee on every job
See our cost guide and what customers say.
Places near Upper Wellingham
Also in Upper Wellingham
What we’re called out for in Upper Wellingham
Not every new-build joint gets the right sealant: caulk where water collects, or a rigid product on a moving joint. Both fail early.
Most people get in touch after spotting one of these:
- Worktop and upstand sealant coming away
- Untidy sealant flagged on a snagging list
- Cracks appearing as a new home settles
- Skirting joints opening in the first winter
In and around Upper Wellingham, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Questions to ask before you book
- What happens if the job turns out different
- Whether the sealant suits the joint
- How long the guarantee is
- What the quote includes, VAT included or not
What happens on the day
All our tools and materials come with us in the van, so you do not need to buy or prepare anything. Once we’ve agreed what’s being done, we protect the area and start. It normally takes anything from a few hours to several days, depending on the number of plots. For a village or hamlet like Upper Wellingham, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We start by going through the snagging items or plot schedule with you.
- The failed sealant is removed completely down to clean surfaces.
- We clean out the dust and grit left from the build.
- Primer goes on where the surface and product need it, then the new sealant.
- Each bead is tooled and the cure times explained.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Try not to wet indoor joints just before the visit
- Let us know if you’ve seen damp or leaks
Getting a quote
Every job is quoted individually. Simply call 0345 464 0079 or email us and describe the job and send photos if you have them.
Related advice
New build mastic around Upper Wellingham
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you’ve bought a new home near Cooksbridge station, the sealant around baths, showers and frames is worth checking in the first year or two.
Upper Wellingham is about 2 miles north-east of Lewes, in East Sussex. We provide new build mastic to homeowners, landlords and businesses in Upper Wellingham and the surrounding area. Across East Sussex, we cover 289 places, and Upper Wellingham is one of them. You can also see our page for Brighton, roughly 9 miles from Upper Wellingham.
Here we cover the BN8 postcode area for new build mastic. We also cover Barcombe Mills (1 mile north), Norlington (1 mile south-east), Barcombe (1 mile north-west), Barcombe Cross (2 miles north-west) and Broyle Side (2 miles east). Within a short drive, we also cover Eastbourne (14 miles south-east), Seaford (9 miles south), Hailsham (10 miles east), Crowborough (12 miles north-east), Uckfield (5 miles north-east) and Newhaven (8 miles south).
Near you in Upper Wellingham
Around Upper Wellingham, our work takes us to homes and buildings near The Cock Inn and the streets around them. For rail, the closest station is Cooksbridge station, roughly 2.1 miles west of the centre. A little further out are Lewes Castle (2.6 miles south-west) and Lewes Victoria Hospital (2.8 miles south-west). The countryside around Upper Wellingham includes Malling Down and Cliffe Hill.
DIY sealant or a professional job?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
If you are set on DIY, put the effort into 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.
Surface by surface
Kitchens
Beside the sink, the joint takes water every day. We use a sealant suited to kitchens.
Windows and doors
Draughts around new frames are often a sealant gap. We check and reseal the frame edges.
Questions from Upper Wellingham
Can you help a landlord with a rental near Cooksbridge station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or email us and tell us about the property, and we will give you a clear quote.
Is Upper Wellingham in your area for new build mastic?
Yes. We work across London and the South East, and Upper Wellingham is part of that. You can ring 0345 464 0079 or send us an email and let us know what needs doing, and we’ll send you a clear quote.
What sealant do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we will explain our choice.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Do you use white or clear sealant?
It depends on the joint: white or clear in most bathrooms, and a colour to suit worktops, frames and floors elsewhere. We will agree it with you first.
Should I go to my builder first?
If you’re still within the builder’s snagging or warranty period, report it to them first. If they’re slow or the fix doesn’t last, we can help.
How much does new build mastic cost in Upper Wellingham?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Can you do plot mastic on a new development?
Yes. We take on second-fix sealant work across new plots. Good preparation keeps snagging to a minimum.
Honest limits
We’d rather tell you now than do work that will not last, so these are the limits:
- Deciding who is responsible under a builder’s warranty
- Settlement cracks that need a surveyor
- Damaged fittings that need replacing
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think before you book.
Joints and surfaces we work on
- Plot handovers
- Bathrooms & en suites
- Skirting & floors
- Windows & doors
- Kitchens
- Show homes