Buckinghamshire · England
New-build mastic & snagging in Mundaydean Bottom, Buckinghamshire
Plot mastic for developers and snagging failed sealant in new homes in Mundaydean Bottom, with a one-year guarantee on every job. Ask us for a quote.
- Sealant applied over dusty or wet surfaces
- Second-fix sealing on new plots
- Cracked caulk along new skirting
New build mastic for homes and businesses in Mundaydean Bottom
A new house keeps drying out and settling for its first couple of years. Timber dries and shrinks, and baths and trays settle, and sealant applied in a hurry at handover can split. If you have sealant applied over dusty or wet surfaces and plot mastic for developers ahead of handover, we can help.
For a small place like Mundaydean Bottom, the journey and access are planned in advance, and the work itself is the same as on any site.
A one-year guarantee comes as standard.
- Where
- Mundaydean Bottom (SL7)
- Region
- Buckinghamshire
- Cover
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
DIY sealant or a professional job?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
Why it’s worth doing now in Mundaydean Bottom
DIY kits don’t solve the main problems with new-build sealant: grit, unprimed surfaces and old layers underneath. Cutting out, cleaning and priming are what make the difference. In a small place like Mundaydean Bottom, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
Why Mundaydean Bottom customers choose us
- Full insurance on every job
- Old sealant always removed completely
- 20+ years of sealant experience
- Quality sealants from Arbo and Everbuild
Take a look at what affects the cost and what customers say.
Also near Mundaydean Bottom
What else we do in Mundaydean Bottom
How it works
Every visit runs the same way: we look at the joints together, protect the area around them, do the work and tidy away. It normally takes anything from a few hours to several days, depending on the number of plots. For a village or hamlet like Mundaydean Bottom, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- Each joint is checked for movement before work begins.
- Old sealant is cut out and the joints cleaned.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- We check every joint and leave you with the cure times.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about any water getting in
- Mention if the joints have been sealed before
Ask for a quote
Every job is quoted individually, so the first step is telling us about yours. Just call 0345 464 0079 or drop us an email with the details.
Read more
What we can’t put right
A few problems are outside what sealant work can do:
- Movement caused by a poorly fitted tray or bath
- Damaged fittings that need replacing
- Cracking that points to a structural problem
If in doubt, call 0345 464 0079 or email us and we’ll say what we think.
Joints and surfaces we work on
- Show homes
- Bathrooms & en suites
- Kitchens
- Skirting & floors
- Plot handovers
- Windows & doors
How the job changes by surface
Windows and doors
Draughts around new frames are often a sealant gap. We look at the joints and reseal where needed.
Bathrooms and en suites
New-build bathrooms and en suites are where sealant fails most often. The old sealant comes out and anti-fungal sanitary silicone goes in after cleaning and priming.
New homes and floors in Mundaydean Bottom
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For new homes near Marlow station, it’s worth checking the sealant early, while snags are still fresh.
Mundaydean Bottom is about 2 miles north-west of Marlow, in Buckinghamshire. Mundaydean Bottom gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our Buckinghamshire coverage runs to 263 places, and Mundaydean Bottom is one of them. Our Reading page covers work nearby (12 miles or so).
Postcode districts we cover here for new build mastic: SL7. If you are just outside Mundaydean Bottom, we cover Bovingdon Green (1 mile south), Marlow Common (1 mile south), Chisbridge Cross (1 mile north-west), Bockmer End (2 miles south-west) and Danesfield (2 miles south). Within a short drive, we also cover High Wycombe (4 miles north-east), Chesham (12 miles north-east), Amersham (11 miles north-east), Beaconsfield (7 miles east), Chalfont St Peter (11 miles east) and Southcourt (15 miles north).
Around Mundaydean Bottom
In Mundaydean Bottom, that means homes and buildings near The Royal Oak pub and Sir William Borlase's Grammar School and the streets around them. The nearest railway station is Marlow station, about 1.9 miles south-east. Other landmarks nearby include Chiltern Sound Phonograph Museum (1.5 miles south-east) and Marlow Community Hospital (1.7 miles south-east). The countryside around Mundaydean Bottom includes Carpenter's Wood.
When to call us in Mundaydean Bottom
A new house holds a lot of water from the build, which takes a year or two to dry out. As it does, timber shrinks and joints open.
Signs it’s time to call us include:
- Gaps opening as the house dries out and settles
- Shower seals failing in the first year or two
- Sealant work across a run of new homes
- Worktop and upstand sealant coming away
Around Mundaydean Bottom, as everywhere, new build mastic is only as good as the preparation behind it.
Questions to ask before you book
- When the joint can take water or movement
- What happens if they find a problem under the old sealant
- Whether they’re fully insured
- Which colour the sealant will be
Looking after it afterwards
Good habits help new joints last longer. A few tips:
- Do not wait for the house to settle if water is getting through
- Follow the cure time we give you
- Clean sealant with mild detergent, not abrasives
- Open a window or run the fan after bathing
Wipe the sealant with warm soapy water. Keep scourers and harsh chemicals off it, which can damage the surface.
Don’t let the snagging period run out with sealant problems unreported. After that, putting it right may fall to you, so raise it early.
Mundaydean Bottom questions
Can you help a landlord with a rental near Marlow station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
Do you cover Mundaydean Bottom for new build mastic?
Yes. We work across London and the South East, and Mundaydean Bottom is part of that. Just ring 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear quote.
Who should fix failed sealant in a new build?
While the snagging or warranty period runs, the builder should be your first contact. If it isn’t sorted, or keeps failing, get in touch with us.
What colour sealant will you use?
It depends on the joint: white or clear for most sanitary joints, colours for worktops, floors and frames. We agree the colour before any work starts.
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’ll explain our choice.
Do the sealants smell?
Sometimes, a little. Any smell clears as the sealant cures.
Can you work from my snagging list?
Yes. We often work straight from a snagging list. We will go through the sealant items and agree what we will do.
Is there a guarantee?
Yes, for a year. If there’s a problem with our work in that time, tell us and we will put it right.