Buckinghamshire · England
Ilmer New Build Mastic
Problem with your new-build sealant joints in Ilmer? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Leaking shower tray seals in a new home
- Sealant work across a run of new homes
- Joints pulling apart as timber shrinks
How to look after the new joints
No joint lasts for ever, but care makes a real difference. Our tips:
- Check bath and shower seals every few months as the house settles
- Avoid scourers and strong chemicals on sealant
- Use the extractor fan every time you shower
- Act quickly if a seal starts to leak
Wipe the sealant with warm soapy water. Keep scourers and harsh chemicals off it.
Do not let the snagging period run out with sealant problems unreported. After that, putting it right may fall to you, so raise it early.
About our new build mastic in Ilmer
Some new-home owners let the house settle before resealing. That makes sense for small gaps that are just cosmetic, but a seal that’s letting water through needs doing now. We work on show homes, skirting & floors and bathrooms & en suites, and the jobs we see most are plot mastic for developers ahead of handover and sealant applied over dusty or wet surfaces.
Older homes in small places like Ilmer often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
A 12-month guarantee comes as standard, so you’re covered after we have gone.
- Location
- Ilmer (HP27)
- Region
- Buckinghamshire
- Cover
- 12 months on all our work
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What happens on the day
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes a few hours in a single home. Somewhere as small as Ilmer, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by agreeing which joints are on the list, from the snagging sheet or plot schedule.
- We cut out every bit of the failed or messy sealant.
- We clean off dust from the build and prime the surfaces where the product needs it.
- A sealant chosen for each area goes in and is tooled smooth.
- We check every joint and tell you how long each needs to cure.
How to prepare
- Clear the area around the work
- Mention any leaks or damp you’ve noticed
- Mention any sign-in or site rules at work premises
Ask for a quote
We don’t publish a price list. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or drop us an email.
Advice
New build mastic around Ilmer
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.
In and around Ilmer, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Ilmer is about 4 miles east of Thame, in Buckinghamshire. For new build mastic in and around Ilmer, please phone 0345 464 0079 or email us for a quick quote. We are based in Crawley and cover Buckinghamshire, Ilmer included. 263 places in Buckinghamshire are on our list. You can also see our page for Oxford, roughly 15 miles from Ilmer.
Every address in HP27 is covered for new build mastic. We also cover Longwick (1 mile south-east), Holly Green (1 mile south), Forty Green (1 mile south), Owlswick (1 mile east) and Pitch Green (2 miles south). We also work in nearby towns such as Aylesbury (6 miles north-east), High Wycombe (10 miles south-east), Chesham (12 miles east), Marlow (13 miles south), Amersham (13 miles east) and Beaconsfield (14 miles south-east).
Landmarks near Ilmer
The closest station to Ilmer is Monks Risborough station, about 2.5 miles east of the centre. Other landmarks nearby include Thame Community Hospital (3.6 miles west) and Great Kimble Dial Hill (3.4 miles east). The countryside around Ilmer includes Beacon Hill and Snakemoor.
For landlords and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll quote.
For anyone letting property in or around Ilmer, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
What we can’t put right
To be straight with you, some problems need a different trade:
- Cracked trays, tiles or worktops
- Baths and trays that move too much for sealant to cope with
- Deciding who is responsible under a builder’s warranty
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly.
Surfaces we seal
- Show homes
- Windows & doors
- Kitchens
- Plot handovers
- Bathrooms & en suites
- Skirting & floors
Ilmer questions
I let a flat near Monks Risborough station. Can you help?
Yes. We work for landlords and agents as well as homeowners, and several properties can go on one quote. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear quote.
Do you cover Ilmer for new build mastic?
Yes, Ilmer is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or send us an email and let us know what needs doing, and we’ll give you a clear quote.
What colour sealant will you use?
White and clear are the most common, but other colours are available. We choose one to suit the room.
Will the old sealant be removed?
Yes, always, and completely. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.
Can you work on commercial sites?
Yes, regularly. We can plan bigger jobs in stages.
How long should I leave it?
That depends on the sealant used, so follow the cure time we give you.
How long will you be here?
Most jobs take anything from a few hours to several days, depending on the number of plots. Your quote will say how long we expect yours to take.
What information do you need?
Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply call 0345 464 0079 or email us.
Can I do it myself?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
A DIY attempt does not rule out a professional job. We cut it out and start again.
Common problems we fix in Ilmer
Fresh sealant can be knocked or cut by trades finishing off. If it’s disturbed before curing, the joint can be left weak.
Look out for any of the following:
- Sealant applied over dusty or wet surfaces
- Second-fix sealing on new plots
- Internal frame sealant that has split
- Smeared, uneven beads picked up at snagging
If you’ve bought a new home near Monks Risborough station, the sealant around baths, showers and frames is worth checking in the first year or two.
Before you book anyone
- The length of the guarantee
- What the cure time is
- How much experience the applicator has
- Is VAT in the price?
What happens if it’s left?
The builder is generally the first port of call while the snagging or warranty period runs. If it’s slow, or the same joint keeps failing, a proper reseal from a specialist is the next step. Where a wall is exposed, as many are in small places like Ilmer, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Doing several joints on one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Why choose Mr Mastic in Ilmer
- ARBOMaster approved applicator
- One-year guarantee on every job
- Homes, businesses and hotels
- Neat joints and a tidy finish
See our cost guide or what customers say.