Reading · England
New-build mastic & snagging in Sonning Common, Reading
Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Sonning Common and across Reading. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Shower seals failing in the first year or two
- Gaps between new skirting and floors
- Worktop and upstand sealant coming away
Why deal with it now?
Running a new bead over the builder’s sealant might look tidy for a few weeks, but it will not bond to the old layer. Taking it all out and starting again is the only way to get a lasting seal. Around Sonning Common, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.
What you get with us
- An ARBOMaster approved applicator
- Old sealant always removed completely
- Over 20 years’ experience
- Trusted Arbo and Everbuild sealants
See our cost guide and customer reviews.
How we handle new build mastic in Sonning Common
Failed shower seals, gaps along the skirting and messy beads are common items on a new-home snagging list. While the builder’s snagging or warranty period runs, report it to them first and if that stalls, we can do it. Typical jobs include plot mastic for developers ahead of handover and smeared, uneven beads picked up at snagging, on skirting & floors, windows & doors and kitchens.
In smaller places like Sonning Common, new homes tend to come as small developments or single plots. The sealant around baths, showers, frames and skirtings needs to be right from the start.
We stand behind the work with a 12-month guarantee, so you are not left on your own once the job is done.
- Where
- Sonning Common (RG4, RG9)
- Wider area
- Reading
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
For landlords and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll quote.
For anyone letting property in or around Sonning Common, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.
What the job involves on each surface
Kitchens
Worktops in new homes can move slightly as the house dries, opening gaps behind the upstand. A fresh flexible bead closes them.
Bathrooms and en suites
En suite showers are a common source of leaks into the room below. A proper reseal keeps water in the tray.
Should I try it myself first?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.
Common questions in Sonning Common
Will you come out to Sonning Common?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you work for landlords with property near Henley-On-Thames station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or email us and tell us about the property, and we will give you a clear price.
Do you do commercial work?
Yes. Larger jobs can be planned room by room or area by area to suit the site.
Is there a guarantee?
Yes. There’s a 12-month guarantee on every job.
Can you reseal over the builder’s sealant?
No. Sealing over old sealant looks fine for a few weeks, then lifts. All the old sealant comes out before any work starts.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned.
Can I add another job to the visit?
Yes. More than one area can go on one quote.
What does new build mastic cost?
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. You’ll get a clear quote before we start.
Also near Sonning Common
More services for Sonning Common
What new build mastic looks like in Sonning Common
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Around Sonning Common, as everywhere, new build mastic is only as good as the preparation behind it. For new homes near Henley-On-Thames station, it’s worth checking the sealant early, while snags are still fresh.
Sonning Common is about 3 miles north of Caversham, in Reading. Every kind of property in Sonning Common can book us for new build mastic, old or new, large or small. Every job comes with our 12-month guarantee. Sonning Common is one of 34 towns and villages in Reading we cover for new build mastic.
All of RG4 and RG9 is within our area for new build mastic, from the main roads to the quietest streets. That includes homes and businesses on Wood Lane, Green Lane and Woodbury Close. If you’re just outside Sonning Common, we cover Peppard Hill (1 mile north-west), Rotherfield Peppard (1 mile north), Kidmore End (1 mile south-west), Kingwood Common (1 mile north-west) and Shepherd's Green (2 miles north). Within a short drive, we also cover Caversham (3 miles south), Norcot (4 miles south-west), West Reading (4 miles south), Tilehurst Within (5 miles south-west), Shinfield (8 miles south) and Arborfield Garrison (10 miles south). As one of the bigger places in Reading, Sonning Common has homes, rented property and businesses of every kind.
Near you in Sonning Common
Typical jobs here are in homes near Maiden Erlegh Chiltern Edge, The Warwick School and Hare & Hounds pub and the streets around them. The closest station to Sonning Common is Henley-On-Thames station, about 3.7 miles east. Well-known places in the area include Frazer Nash Archives (3.8 miles east) and Battle Hospital (4.1 miles south). Green spaces nearby include Sonning Hill and Warburg Nature Reserve.
How we quote for new build mastic
You will get a clear quote before we start. It takes into account:
- The product the joint needs
- How easy the joints are to reach
- How many rooms, windows or areas are involved
- Mould in or behind the old joints
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
What we need to know
When you call or email, these details help:
- Whether it has been sealed before
- Access, such as stairs, a lift or height
- A few photos by email, if you can
- Whether it’s a home or a business
Every job is quoted individually, so start by telling us what you need. Simply call 0345 464 0079 or drop us an email and describe the job and send photos if you have them.
How the visit works
When we arrive, we start by going over the job with you. We protect the surfaces around the joints before we start. Most jobs take anything from a few hours to several days, depending on the number of plots. In a smaller place like Sonning Common, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- We start by going through the snagging items or plot schedule with you.
- The failed sealant is removed completely, with no layer left behind.
- Joints are vacuumed and cleaned of building dust.
- We prime where needed and apply a sealant suited to each joint.
- Each bead is tooled and the cure times explained.
How to prepare
- Mention any sign-in or site rules at work premises
- Keep children and pets away from the work area
- Tell us about any previous sealing or DIY attempts
Ask for a quote
For new build mastic in Sonning Common, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.
Read more
When something else is needed
In fairness, some problems need a different trade:
- Structural cracks in walls or ceilings
- Baths and trays that move too much for sealant to cope with
- Damaged fittings that need replacing
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly before booking.
Surfaces we seal
- Show homes
- Kitchens
- Skirting & floors
- Plot handovers
- Windows & doors
- Bathrooms & en suites