Hampshire · England
Penton Corner New Build Mastic
New build mastic across Penton Corner and nearby, with every bit of old sealant taken out first and a one-year guarantee.
- Sealant applied over dusty or wet surfaces
- Cracked caulk along new skirting
- Shower seals failing in the first year or two
What we cannot put right
A few problems are outside what sealant work can do:
- Broken tiles or a split tray
- Cracking that points to a structural problem
- Your warranty claim itself, which is between you and the builder
If in doubt, phone 0345 464 0079 or send us an email and we will say what we think.
Joints and surfaces we work on
- Kitchens
- Bathrooms & en suites
- Skirting & floors
- Windows & doors
- Show homes
- Plot handovers
How we handle new build mastic in Penton Corner
Developers send us the plot schedule and we work through it. Bathrooms, en suites, kitchens, frames and skirting are sealed ready for handover. We work on bathrooms & en suites, plot handovers and skirting & floors, and the jobs we see most are sealant work across a run of new homes and frame joints opening as the plaster dries.
Around Penton Corner, older homes often have timber floors that move through the year, which is why skirting and threshold joints need a flexible sealant, not filler.
Your job is guaranteed for a year, as with all our work.
- Location
- Penton Corner (SP11)
- Region
- Hampshire
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
New build mastic in Penton Corner: local notes
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Around Penton Corner, as everywhere, new build mastic is only as good as the preparation behind it.
Penton Corner is about 2 miles west of Andover, in Hampshire. Across the SP11 area, we cover new build mastic for homes and businesses. Our Hampshire coverage runs to 683 places, and Penton Corner is one of them. For nearby work, see our Southampton page (21 miles or so).
Jobs for new build mastic in SP11 works the same way as everywhere else we cover. That includes homes and businesses on Short Lane and Beech Close. Nearby, we also carry out new build mastic in Penton Grafton (1 mile north), Penton Mewsey (1 mile north), Red Post Bridge (1 mile south), Foxcotte (1 mile north-east) and Charlton (1 mile east). Larger places within reach include Winchester (14 miles south-east), Romsey (15 miles south), Hyde (14 miles south-east), Tidworth (6 miles west), Weeke (13 miles south-east) and Stanmore (14 miles south-east).
Around Penton Corner
Typical jobs here are in homes near Harrow Way Community School and White Hart Public House. The closest station to Penton Corner is Andover station, roughly 1.6 miles east of the centre. Nearby you will also find Andover Museum (2.3 miles east) and Andover War Memorial Hospital (1.5 miles east). The countryside around Penton Corner includes Quarley Hill and Anton Lakes.
Common questions in Penton Corner
Do you work for landlords with property near Andover station?
Yes, rental work is part of what we do. You can call 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before work begins.
Is Penton Corner within the area you cover?
Yes. Penton Corner is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover Penton Corner.
Can you do plot mastic on a new development?
Yes. We work through plots to your schedule, room by room. Tell us the plots and the joints involved and we will quote.
Will there be a smell?
That depends on the sealant. Some smell for a while, some hardly at all.
Do you remove the old sealant?
Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.
What does new build mastic cost?
Every job is different, so each one gets its own quote. For a quick quote, phone 0345 464 0079 or email us and let us know what needs doing and where.
Do you use white or clear sealant?
The colour is chosen to suit the tiles, worktop or frame. Let us know your preference when you ask for a quote.
DIY sealant or a professional job?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Towns and villages near Penton Corner
What else we do in Penton Corner
Aftercare tips
After the cure time, these simple habits help:
- Avoid running a DIY bead over the old one
- Follow the cure time we give you
- Record problems with dated photos
- Look at the sealant regularly in the first couple of years
Clean the sealant with a mild detergent and a soft cloth. Keep scourers and harsh chemicals off it, which can damage the surface.
Lifting sealant traps moisture and mould behind it. Dealing with it before it goes black saves a harder job later.
What affects the quote in Penton Corner
Your quote is based on your job. We look at:
- Whether the work is at height
- How much old sealant there is and how hard it is to remove
- How many rooms, windows or areas are involved
- Any mould that needs treating
The cost reflects the work involved, not guesswork. That is why we ask a few questions first.
Helping us quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Pictures of the joints, sent by email
- The problem you’ve noticed
- Any previous sealing or DIY work
- The type of property
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work and give you a clear price.
How the visit works
When we arrive, we look over the joints with you first, so there are no surprises. We protect the surfaces around the joints before we start. Most jobs take a few hours in a single home. In a small place like Penton Corner, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- 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.
- We tool every joint neatly and tell you when each area can be used.
Getting ready for the visit
- Plan for the work area to be out of bounds to pets and children
- On commercial sites, let us know about site rules
- Let us know if you’ve seen damp or leaks
Getting a quote
Want a quote for new build mastic? Please phone 0345 464 0079 or drop us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
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Signs you need new build mastic in Penton Corner
Not every new-build joint gets the right sealant: caulk where water collects, or a rigid product on a moving joint. Both fail early.
Any of these means the joints need attention:
- Smeared, uneven beads picked up at snagging
- Internal frame sealant that has split
- Leaking shower tray seals in a new home
- Gaps opening as the house dries out and settles
For new homes near Andover station, it’s worth checking the sealant early, while snags are still fresh.
Before booking anyone
- Are they insured?
- Whether you can choose the colour
- Whether they seal over old material or remove it
- The length of the guarantee
Landlords, agents and businesses in Penton Corner
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
If you manage several properties in or around Penton Corner, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and photos by email help.