Oxfordshire · England
New Build Mastic in Park Town
Professional new build mastic in and around Park Town, with every bit of old sealant taken out first and a 12-month guarantee.
- Cracked sealant around new window and door frames
- Cracks appearing as a new home settles
- Untidy sealant flagged on a snagging list
How we handle new build mastic in Park Town
Some new-home owners let the house settle before resealing. For small cosmetic gaps, that is reasonable, but a seal that’s letting water through needs doing now. We work on show homes, kitchens and windows & doors, and people most often call us about worktop and upstand sealant coming away and smeared, uneven beads picked up at snagging.
In smaller places like Park Town, 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.
All of our work is guaranteed for twelve months.
- Place
- Park Town (OX2, OX1)
- Wider area
- Oxfordshire
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How to look after the new joints
No joint lasts for ever, but care makes a real difference. Our tips:
- Report sealant problems to your builder during the snagging period
- Wait for the cure time before using a resealed shower
- Do not wait for the house to settle if water is getting through
- Ventilate bathrooms well, especially in the first year
Clean the sealant with a mild detergent and a soft cloth. Keep scourers and harsh chemicals off it as they wear the bead.
Don’t let the snagging period run out with sealant problems unreported. Once it ends, the repair may be down to you, so raise it early.
What happens if it’s left?
Water getting past a failed seal in a new build reaches walls and floors that are still settling. Resealing promptly protects the new finishes around it. Homes in smaller places like Park Town can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
Combining jobs into one visit is usually more efficient than separate visits. You will get one clear quote for the whole job.
Why us?
- A 12-month guarantee on all work
- We leave the area clean and tidy
- We’re fully insured
- ARBOMaster approved applicator
Take a look at how sealant jobs are priced or our reviews.
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
What happens on the day
You don’t need to clear the whole room or building before we come, just the space around the work. Everything nearby is protected, and the work takes a few hours in a single home in most cases. In a smaller place like Park Town, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- First we work through your snagging list or plot schedule with you.
- We cut out every bit of the failed or messy sealant.
- Surfaces are cleaned of building dust and primed where needed.
- 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.
Preparing for the visit
- Let us know about earlier repairs to the joints
- Keep pets and children clear of the area while we work
- Clear the area around the work
Ask for a quote
We do not publish a price list. Instead, we send you a clear quote for your job. To arrange one, phone 0345 464 0079 or drop us an email.
Advice
What else we do in Park Town
What the job involves on each surface
Kitchens
New-kitchen sealant is often applied in a rush. We remove it and reseal with a kitchen-suitable sealant.
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.
What new build mastic looks like in Park Town
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Around Park Town, as everywhere, new build mastic is only as good as the preparation behind it. For new homes near Oxford station, it’s worth checking the sealant early, while snags are still fresh.
Park Town is about 2 miles north-west of Oxford, in Oxfordshire. Park Town gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Across Oxfordshire, we cover 443 places, Park Town among them.
Every address in OX2 and OX1 is covered for new build mastic, from the main roads to the quietest streets. New build mastic is available to properties on Parks Road, Keble Road and Crick Road and the roads around them. Being close to the A4144, Park Town is easy for our applicators to reach for new build mastic. We also cover Norham Manor (1 mile east), Walton Manor (1 mile south-west), Jericho (1 mile south-west), North Oxford (1 mile north) and St John Street area (1 mile south). Within a short drive, we also cover Didcot (11 miles south), Bicester (10 miles north-east), Abingdon-on-Thames (6 miles south), Witney (10 miles west), Carterton (14 miles west) and Thame (12 miles east).
Near you in Park Town
Around Park Town, our work takes us to homes and buildings near St Aloysius' Catholic Primary School, Oxford University Parks and The Rose & Crown pub, among other places. You’ll also find Oxford Academy (0.6 miles north) and St Hugh's College Main Building Including Library (under half a mile north-west). Park Town’s nearest station is Oxford station, about 0.9 miles south-west of the centre. Other landmarks nearby include Oxford Castle (1 mile south) and Oxford University Museum of Natural History (0.5 miles south). Not far away are Headington Hill and Hook Meadow and The Trap Grounds.
Landlords, agents and businesses in Park Town
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
Park Town: your questions answered
Can you do new build mastic in Park Town?
Yes, Park Town is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or drop us an email with a few details of the job.
Will you come out to Park Town?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you have insurance?
Yes. We’re fully insured.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us and we are fully insured.
Can you work from my snagging list?
Yes. Snagging lists are a common starting point for us. We agree the sealant items with you before we start.
Where is Mr Mastic based?
We are a Crawley-based firm. We work across South East England, London and Scotland.
Can I do it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Why has my new-build shower seal failed already?
Cracking in the first couple of years is common as timber and plaster dry out. Poor preparation at handover adds to it.
How we quote for new build mastic
We do not publish a price list, because no two jobs are the same. The quote depends on:
- Whether old sealant or filler has to be cut out
- The number and length of the joints
- How many rooms, windows or areas are involved
- Mould in or behind the old joints
What it costs 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 any work starts, so you know where you stand.
Helping us quote
What to tell us when you ask for a quote:
- Any previous sealing or DIY work
- Photos by email, if that is easy
- The problem you’ve noticed
- The type of property
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work before giving you a price.