Wokingham · England
New-build mastic & snagging in Newtown, Wokingham
Professional new build mastic in and around Newtown, with every bit of old sealant taken out first and a 12-month guarantee.
- New-build shower sealant that has already split
- Cracks appearing as a new home settles
- Kitchen sealant that has pulled off the wall
What sealant work can’t fix
It helps to know what we can’t do:
- Movement caused by a poorly fitted tray or bath
- Cracking that points to a structural problem
- Your warranty claim itself, which is between you and the builder
If you are not sure, just call 0345 464 0079 or send us an email and we’ll give you a straight answer.
Joints and surfaces we work on
- Windows & doors
- Kitchens
- Bathrooms & en suites
- Show homes
- Plot handovers
- Skirting & floors
New build mastic in Newtown
Some new-home owners let the house settle before resealing. That makes sense for small gaps that are just cosmetic, but a failed shower or bath seal shouldn’t wait. We work on kitchens, bathrooms & en suites and windows & doors, and the jobs we see most are cracked caulk along new skirting and untidy sealant flagged on a snagging list.
If you’ve bought a new home in or near Newtown, the first year or two is a good time to check the sealant. Gaps at skirtings, shower seals pulling away and missing mastic around frames are common snags.
Your job is guaranteed for a year, as with all our work.
- Where
- Newtown (RG1, RG6, RG4)
- Region
- Wokingham
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Places near Newtown
Also in Newtown
For landlords and businesses
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
If you manage several properties in or around Newtown, several properties can go on one quote. Send us the addresses and the work at each, and photos by email help.
Joints and finishes in Newtown homes
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For new homes near Reading station, it’s worth checking the sealant early, while snags are still fresh. In and around Newtown, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Newtown is about 1 mile east of Reading, in Wokingham. From the centre of Newtown to the outskirts, we cover new build mastic for every kind of property, from flats and houses to offices and hotels. Our Wokingham coverage runs to 35 places, and Newtown is one of them.
Our applicators cover all of the RG1, RG6 and RG4 postcode area for new build mastic and the streets around it. You will find streets such as Orts Road, Eldon Road and Amity Road, and we cover them all. We also cover Lower Caversham (1 mile north-west), Reading (1 mile west), Earley (2 miles south-east), Caversham (2 miles north-west) and Play Hatch (2 miles north). Within a short drive, we also cover Wokingham (5 miles south-east), Crowthorne (9 miles south-east), Winnersh (3 miles south-east), Woosehill (5 miles south-east), Emmbrook (5 miles south-east) and Twyford (4 miles north-east). As one of the bigger places in Wokingham, Newtown has every kind of property, from flats to offices.
Landmarks near Newtown
We work in homes and buildings around University of Reading library, Eldon Square and The Fisherman's Cottage pub. Also close by are Bulmershe College (less than half a mile west) and Maiden Erlegh School (0.6 miles south-east). For rail, the closest station is Reading station, about 1.1 miles west. A little further out are The Oracle (1.1 miles west) and Royal Berkshire Hospital (0.6 miles south-west). Green spaces nearby include Sonning Hill and Fobney Island Wetland Reserve.
How the visit works
There’s no need to move everything out before we come, only the area right around the joints. We protect the rest, and the job takes anything from a few hours to several days, depending on the number of plots in most cases. A visit to Newtown is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We look at why each joint failed, including any movement.
- Old sealant is cut out and the joints cleaned.
- We make sure the joints are dry and prime them if needed.
- New sealant goes in, with baths filled first so they’re at their heaviest.
- We check every joint and leave you with the cure times.
Before we arrive
- Let us know about parking restrictions
- Keep pets and children clear of the area while we work
- Let us know if you’ve seen damp or leaks
Getting a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll explain what’s involved.
Read more
Why deal with it now?
For developers, getting the sealant right first time saves return visits. Snagging visits for failed sealant cost time on every plot. In a smaller place like Newtown, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
The cost depends on the size of the job, how hard the old material is to remove and access to the work. We give a clear quote before work begins.
Why choose Mr Mastic in Newtown
- ARBOMaster approved applicator
- Quality sealants from Arbo and Everbuild
- Full insurance on every job
- Anti-fungal silicone where joints get wet
DIY versus a professional finish
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Newtown: your questions answered
I let a flat near Reading station. Can you help?
Yes, we work for landlords and letting agents. Just ring 0345 464 0079 or email us and tell us about the property, and we will give you a clear price.
Do you cover smaller places like Newtown?
Yes. Newtown is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint.
Do you take on second-fix sealing for builders?
Yes. Plot mastic and second-fix sealing for developers is part of our work. Send the schedule and any specification and we will give you a quote.
Where are you based?
Our base is in Crawley, and we work across South East England, London and Scotland.
How long should I leave it?
Most sealants are touch-dry well before they’re fully cured. We’ll tell you how long to leave the joint.
How do I get a quote for new build mastic in Newtown?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. Working times can be discussed when we quote.
Surface by surface
Skirting and floors
New homes often develop a gap between skirting and floor. We seal it with a flexible sealant that copes with the movement.
Show homes
Bathrooms, kitchens and frames in show homes are sealed or resealed to a neat finish ready for viewings. Tell us when the home is open so we can plan around it.
How we quote for new build mastic
We don’t publish a price list. What we look at:
- Working hours on commercial sites
- How many areas need sealing
- The number and length of the joints
- Whether old sealant or filler has to be cut out
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Helping us quote
What to tell us when you ask for a quote:
- Whether it’s a home or a business
- What’s wrong with the joints now
- The address or postcode of the job
- Access, such as stairs, a lift or height
If you’re in Newtown and need new build mastic, phone 0345 464 0079 or drop us an email. Tell us what the problem is and where, and we’ll agree the price before any work begins.