West Berkshire · England
New Build Mastic in Mortimer
We cover Mortimer for plot mastic for developers and snagging failed sealant in new homes. Old sealant removed completely, joints prepared properly.
- Second-fix sealing on new plots
- New-build shower sealant that has already split
- Sealant that never bonded to the surface
New build mastic in Mortimer
Snagging sealant properly means taking the failed bead out completely. New silicone will not bond to old silicone, so the joint is cut out, cleaned, dried and resealed. We work on bathrooms & en suites, windows & doors and skirting & floors, and people most often call us about messy sealant that spoils new finishes and sealant applied over dusty or wet surfaces.
Homes around Mortimer range from older cottages to newer houses, and their floors range just as widely, each moving in its own way. The sealant at skirtings and thresholds has to suit the floor it meets.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Location
- Mortimer (RG7)
- Region
- West Berkshire
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
How the job changes by surface
Plot handovers
Developers can send the plot schedule and specification and we will quote. Sealant work across the plot is covered to the agreed spec.
Show homes
Tired or marked sealant in a show home can be renewed. The old bead comes out and a clean new one goes in.
Also near Mortimer
Also in Mortimer
What affects the quote in Mortimer
We quote each job individually. This is what makes a difference:
- How much old sealant there is and how hard it is to remove
- The product the joint needs
- Whether there’s mould to deal with
- When we can work, for business premises
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first and agree the price before starting.
Asking for a quote
Photos help, but a description is a good start. Please mention:
- Whether it’s a home or a business
- Photos by email, if that’s easy
- The address or postcode of the job
- The rough size of the job
To get a quote, phone 0345 464 0079 or send us an email with the location and a short description of the problem. You will have a clear quote before we start.
Keeping the joints in good condition
A little care helps the new joints last. We recommend:
- Do not wait for the house to settle if water is getting through
- Avoid scourers and strong chemicals on sealant
- Resist patching a failed seal with a tube from the DIY shop
- Watch for new gaps as the house dries out
Clean the sealant with a mild detergent and a soft cloth. Avoid abrasive pads and strong solvents, which can damage the surface.
The sooner you deal with untidy or cracking sealant, the less there is to put right. Left alone, a small crack can become a leak.
What new build mastic looks like in Mortimer
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.
Around Mortimer, as everywhere, new build mastic is only as good as the preparation behind it.
Mortimer is about 4 miles north-east of Tadley, in West Berkshire. Jobs in Mortimer get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Mortimer is one of 155 towns and villages in West Berkshire where we work. You can also see our page for Reading, roughly 6 miles from Mortimer.
All of RG7 is covered for new build mastic. If you need new build mastic at a property on The Street, Croft Road and Leigh Field or anywhere close by, we can help. Nearby, we also carry out new build mastic in Stratfield Mortimer (1 mile east), Mortimer West End (1 mile south-west), Goddard's Green (2 miles north-east), Burghfield Common (2 miles north) and Wokefield (2 miles north-east). Further out, we also cover Newbury (11 miles west), Thatcham (8 miles west), Speenhamland (11 miles west), Spencers Wood (4 miles east), Calcot (5 miles north) and Shaw (11 miles west).
Near you in Mortimer
In Mortimer, that means homes and buildings near The Willink School, The Willink School and Padworth Common Local Nature Reserve, among other places. The nearest railway station is Mortimer station, roughly 1.4 miles east. Nearby you will also find Calleva Museum (2 miles south-west) and Beaumys Castle (3.7 miles east). Open spaces near Mortimer include Hosehill Lake.
Your questions about new build mastic in Mortimer
Is Mortimer in your area for new build mastic?
Yes. We work across London and the South East, and Mortimer 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 price.
Will you come out to Mortimer?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Are you ARBOMaster approved?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Can you do plot mastic on a new development?
Yes. Plot mastic and second-fix sealing for developers is part of our work. Send the schedule and any specification and we’ll give you a quote.
My new home is still under warranty. Should I contact you?
While the snagging or warranty period runs, the builder should be your first contact. If they’re slow or the fix does not last, we can help.
Can you do several jobs on one visit?
Of course. Doing several areas at once is normally more efficient.
Do you work through snagging lists?
Yes. We often work straight from a snagging list. We agree the sealant items with you before work begins.
What should I tell you?
Tell us what needs doing and where. We’ll ask anything else we need to know.
Honest limits
To be straight with you, some problems need a different trade:
- Damaged fittings that need replacing
- A tray or bath that isn’t properly supported, until it’s fixed
- Structural cracks in walls or ceilings
If in doubt, phone 0345 464 0079 or email us and we will say what we think.
What we seal
- Bathrooms & en suites
- Kitchens
- Plot handovers
- Skirting & floors
- Show homes
- Windows & doors
The process
At the end, we look at the finished work together and explain the cure time. The visit itself usually takes a few hours for most snagging lists, longer for a run of plots, depending on the amount of work. A visit to Mortimer is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- Each joint is checked for movement before any work starts.
- 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.
- The finished joints are checked and the cure times given.
How to prepare
- Let us know about parking restrictions
- For indoor joints, keep the area dry beforehand if you can
- Plan for the work area to be out of bounds to pets and children
Getting a quote
We do not publish a price list, because every job is different. Instead, we send you a clear quote for your job. To arrange one, ring 0345 464 0079 or drop us an email.
Advice
What we’re called out for in Mortimer
Once people move in, baths and trays take weight and bed down. A bath sealed empty drops slightly when filled, straining the joint and can tear.
Signs it’s time to call us include:
- Messy sealant that spoils new finishes
- Second-fix sealing on new plots
- Joints pulling apart as timber shrinks
- Beads laid onto grit and dust from the build
If you’ve bought a new home near Mortimer station, the sealant around baths, showers and frames is worth checking in the first year or two.
Questions to ask before booking
- How the surfaces are prepared before sealing
- How much experience the applicator has
- Which colour the sealant will be
- How long the guarantee is
Why deal with it now?
Resealing everything on a snagging list in one visit is usually simpler than chasing joints one at a time. You get one visit and one clear quote to plan around. Homes in smaller places like Mortimer can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
A failed joint rarely gets cheaper to fix by waiting. If you are unsure, ring 0345 464 0079 or send us an email for an honest opinion and a quote.
What you get with us
- Sanitary silicone with an anti-fungal additive in wet areas
- 180+ five-star Google reviews
- Arbo and Everbuild products
- 12-month guarantee on every job
Take a look at what affects the cost and our reviews.