Buckinghamshire · England
Adstock New Build Mastic
Problem with your new-build sealant joints in Adstock? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Gaps behind new kitchen upstands
- Messy sealant that spoils new finishes
- Joints pulling apart as timber shrinks
Honest limits
We won’t take on work that won’t last, so these are the limits:
- Plumbing faults behind the sealant
- Deciding who is responsible under a builder’s warranty
- Broken tiles or a split tray
If in doubt, call 0345 464 0079 or email us and we’ll say what we think.
What we seal
- Show homes
- Bathrooms & en suites
- Kitchens
- Skirting & floors
- Plot handovers
- Windows & doors
New build mastic in Adstock, 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. Typical jobs include worktop and upstand sealant coming away and gaps between new skirting and floors, across plot handovers, kitchens and windows & doors.
Older homes in small places like Adstock often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
A one-year guarantee comes as standard, so you are not left on your own once the job is done.
- Location
- Adstock (MK18)
- Region
- Buckinghamshire
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
How it works
We bring everything the job needs with us, so you do not need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. Most jobs take a few hours for most snagging lists, longer for a run of plots. For a village or hamlet like Adstock, 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.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- The failed sealant is removed completely, with no layer left behind.
- 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
- On commercial sites, let us know about site rules
- Keep pets and children clear of the area while we work
- Let us know about stairs, lifts or work at height
How to get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. Whenever you are ready, call 0345 464 0079 or drop us an email.
Read more
Adstock questions
Is Adstock within the area you cover?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you do new build mastic in Adstock?
Yes. Our work covers London and the South East, and Adstock is part of that. You can call 0345 464 0079 or drop us an email and let us know what needs doing.
What colour sealant will you use?
That depends on what the joint meets: white or clear in most bathrooms, and a colour to suit worktops, frames and floors elsewhere. We’ll agree it with you first.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.
Can you do plot mastic on a new development?
Yes. Plot mastic and second-fix sealing for developers is part of our work. Send us the plot schedule and we will quote.
Are you insured?
Yes. Full insurance covers our work.
Can you work from my snagging list?
Yes. Send it with photos and we’ll quote for the sealant items. Items that need a plumber, tiler or the builder are flagged.
How long does new build mastic take?
Most jobs take a few hours in a single home. Your quote will say how long we expect yours to take.
Why it’s worth doing now in Adstock
Small cosmetic gaps can wait for the house to settle, but water getting through cannot. Not sure whether yours can wait? You can ring 0345 464 0079 or send us an email with a few photos. In a small place like Adstock, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Combining jobs into one visit is usually more efficient than separate visits. You will get one clear quote for the whole job.
Why Adstock customers choose us
- A sealant colour to suit the surroundings
- You choose the colour before work begins
- Full insurance on every job
- White, clear, grey or coloured to suit, where the product allows
Read what affects the cost and customer reviews.
New build mastic in Adstock: local notes
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.
Around Adstock, as everywhere, new build mastic is only as good as the preparation behind it.
Adstock is about 3 miles south-east of Buckingham, in Buckinghamshire. Adstock gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 263 places across Buckinghamshire, large and small. For nearby work, see our Oxford page, about 20 miles away.
We work across the MK18 postcode area for new build mastic and the streets around it. You’ll find streets such as Main Street, East Street and Greenfields, all of which we cover. We also cover the places around Adstock: Padbury (1 mile west), Thornborough (2 miles north), East Claydon (3 miles south), Middle Claydon (3 miles south-west) and Steeple Claydon (3 miles south-west). Larger places within reach include Aylesbury (11 miles south-east), Elmhurst (11 miles south-east), Southcourt (12 miles south-east), Haydon Hill (10 miles south), Turnfurlong (12 miles south-east) and Haddenham (13 miles south).
Near you in Adstock
We work in homes and buildings around Sir Thomas Fremantle School and The Folly Inn, among other places. Nearby you will also find Buckingham Community Hospital (3.5 miles north-west) and Buckingham Castle (3.5 miles north-west). The countryside around Adstock includes Buckingham Sand Pit.
When to call us in Adstock
The wrong product is sometimes used in the wrong place: caulk where water collects, or a rigid product on a moving joint. Neither lasts long.
Look out for these signs:
- Plot mastic for developers ahead of handover
- Messy sealant that spoils new finishes
- Internal frame sealant that has split
- Gaps opening as the house dries out and settles
For jobs in and around Adstock, choosing the right material for each joint is as important as a tidy finish.
What to look for in a quote
- Who turns up on the day
- How the colour is chosen
- The length of the guarantee
- What happens if the job turns out different
Different surfaces, different methods
Kitchens
Sink joints are wet all the time. We use a sealant suited to kitchens suited to the job.
Show homes
Tired or marked sealant in a show home can be renewed. We cut it out and reseal neatly.
What affects the quote in Adstock
Every job gets its own quote. These are the things that affect it:
- The product the joint needs
- Whether old sealant or filler has to be cut out
- How much there is to do
- Whether the work is at height
The cost depends on how much there is to do, how much old material has to come out and access to the work. You will have a clear quote before any work starts.
Asking for a quote
To make quoting easier, let us know:
- The address or postcode of the job
- Pictures of the joints, sent by email
- Any previous sealing or DIY work
- How many joints, rooms or windows are involved
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work before giving you a price.
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
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.