Buckinghamshire · England
New Build Mastic in Swan Bottom
Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Swan Bottom and across Buckinghamshire. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Untidy sealant flagged on a snagging list
- Shower seals failing in the first year or two
- Worktop and upstand sealant coming away
How we handle new build mastic in Swan Bottom
In a new home, every joint should have a clean, even bead. Smeared, patchy or cracked sealant is worth sorting early, before water reaches anything behind it. Typical jobs include skirting joints opening in the first winter and internal frame sealant that has split, across skirting & floors, bathrooms & en suites and show homes.
Work in a small place like Swan Bottom just needs the journey and access planning, and once on site, the job is the same as anywhere.
All of our work is guaranteed for twelve months.
- Place
- Swan Bottom (HP16)
- Region
- Buckinghamshire
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
When something else is needed
To be straight with you, some problems need a different trade:
- Deciding who is responsible under a builder’s warranty
- Plumbing faults behind the sealant
- Settlement cracks that need a surveyor
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think.
What we seal
- Skirting & floors
- Kitchens
- Bathrooms & en suites
- Plot handovers
- Windows & doors
- Show homes
Aftercare tips
No joint lasts for ever, but care makes a real difference. A few tips:
- Ventilate bathrooms well, especially in the first year
- Keep water off fresh sealant until it has cured
- Resist patching a failed seal with a tube from the DIY shop
- Wipe joints with warm soapy water
Follow the cure time we give you before the area gets wet. Most silicones need around a day.
Lifting sealant traps moisture and mould behind it. Resealing before mould gets in saves a harder job later.
How it works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes anything from a few hours to several days, depending on the number of plots, and the area is left clean. In a small place like Swan Bottom, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each joint is checked for movement before we start.
- We remove the failed sealant and clean the joints.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- The finished joints are checked and the cure times given.
How to prepare
- Mention any leaks or damp you’ve noticed
- Where the joints are inside, avoid wetting them before we arrive
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
To get a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We will give you a clear price before any work starts.
Related advice
How we quote for new build mastic
The price is agreed before any work begins. It takes into account:
- The old material and how stubborn it is
- Whether the work is at height
- How much there is to do
- Which sealant suits the joint
What you pay reflects the work, not a rough estimate. That’s why we ask a few questions first and send you a clear quote before work begins.
What to tell us for a quote
Photos by email are helpful but not essential. Please mention:
- Whether it’s a home or a business
- What the problem is, such as mould, gaps, leaks or cracking
- Where the property is
- Photos by email, if that’s easy
Every job is quoted individually, so the first step is telling us about yours. Simply ring 0345 464 0079 or send us an email and describe the job.
How the job changes by surface
Kitchens
Worktops in new homes can move slightly as the house dries, which opens gaps along the back. A fresh flexible bead closes them.
Show homes
Show homes need sealant that looks right from day one. We lay neat, even beads in colours to suit the finishes.
Also near Swan Bottom
Other services in Swan Bottom
What new build mastic looks like in Swan Bottom
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Around Swan Bottom, as everywhere, new build mastic is only as good as the preparation behind it. For new homes near Great Missenden station, it’s worth checking the sealant early, while snags are still fresh.
Swan Bottom is about 4 miles north-west of Chesham, in Buckinghamshire. Swan Bottom gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Swan Bottom is one of 263 places in Buckinghamshire where we work for new build mastic. Our Reading page covers work nearby (23 miles or so).
Postcode districts we cover here for new build mastic: HP16. We also cover the places around Swan Bottom: Lee Common (1 mile south-east), St Leonards (1 mile north-east), Ballinger Common (1 mile south-east), Buckland Common (2 miles north-east) and Cholesbury (2 miles north-east). Larger places within reach include Aylesbury (7 miles north-west), High Wycombe (8 miles south), Chesham (4 miles south-east), Marlow (12 miles south), Amersham (6 miles south-east) and Beaconsfield (9 miles south).
Landmarks near Swan Bottom
Around Swan Bottom, our work takes us to homes and buildings near The Old Swan pub and the streets around them. Swan Bottom’s nearest station is Great Missenden station, about 2.5 miles south of the centre. Nearby you will also find Roald Dahl Museum and Story Centre (2.6 miles south) and Chiltern Hospital (3.4 miles south). For a walk, there’s Dancersend Nature Reserve and Haddington Hill.
DIY sealant or a professional job?
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
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.
For landlords and businesses
If you manage several properties in or around Swan Bottom, several properties can be quoted together. Just tell us the addresses and what each one needs.
Housing providers, facilities teams and property managers book us too in Swan Bottom and across Buckinghamshire. We can quote a run of properties together, and we’re fully insured.
Questions from Swan Bottom
Can you help a landlord with a rental near Great Missenden station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just call 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear quote.
Do you cover smaller places like Swan Bottom?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you hold any approvals?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Do you work through snagging lists?
Yes. Snagging lists are a common starting point for us. We agree the sealant items with you before work begins.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done and we’ll quote it together.
Where is Mr Mastic based?
Our base is Crawley. We work across South East England, London and Scotland.
Will you leave a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
How long does new build mastic take?
It depends on the size of the job, but most jobs take a few hours for most snagging lists, longer for a run of plots. We’ll give you a better idea when we quote.