Mastic sealing for building owners and managing agents in Kennington, Oxfordshire
Mastic sealing for Kennington, from a contractor working since 2005. Fully insured, with a 12-month guarantee.
- Old repairs sealed over failed mastic
- Leaks at window and door perimeters
- Movement joints with sealant missing
Mastic sealing in Kennington
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Mastic sealing for commercial buildings in Kennington
For over 20 years we have resealed joints for owners, agents and landlords. Our applicators are CSCS-carded and we hold public liability insurance. Resealed mastic joints in Kennington carry our 12-month guarantee. The enquiries we see most involve a mix of products and colours from past repairs and movement joints with sealant missing, on shopfronts below residential blocks, communal entrances and stairwells and communal kitchens and washrooms. Most enquiries from Kennington start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.
Owners with buildings around smaller places like Kennington often group mastic work so one visit covers several properties. Send the addresses and photos and we’ll quote for all of them together.
Every job we finish is backed by a 12-month workmanship guarantee, in Kennington as everywhere else we work. If our installation lets you down in that time, we return and fix it.
- Where
- Kennington (OX1, OX14)
- Region
- Oxfordshire
- Guarantee
- A 12-month guarantee
- Price
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Surface by surface
Planned maintenance
Resealing can be scheduled alongside other planned works, building by building.
Window and door perimeters on blocks
Blocks have a mix of frame materials, so the grade we pick has to bond to frame and wall alike. Colours are confirmed for the product used.
When to bring in a specialist
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we’ll confirm the paperwork you need with the quote.
For owners and agents in Kennington
Kennington is about 51 miles from central London. Within reach of London, blocks run by agents and associations are common around stations. Kennington sits in one of the drier corners of the country, the South East. Outside mastic still needs a dry joint and the right temperature, and elevations facing the sun and the prevailing weather are usually where frame mastic ages first.
For a school such as St Swithun's CofE Primary School, perimeter mastic on windows and doors is a holiday job. Older community buildings, St Swithun's Church among them, often have frames of mixed ages whose mastic varies.
Kennington is about 3 miles south of Oxford, in Oxfordshire. If you are looking for mastic sealing in Kennington, we can help. We work across 423 places in Oxfordshire.
Work on mastic joints is covered throughout OX1 and OX14, for business premises of every kind. For a building on Simpsons Way, The Avenue and Liddiard Close or nearby, send details and we’ll quote for mastic joints. If your building is just outside Kennington, we cover Sandford-on-Thames (1 mile east), Littlemore (1 mile north-east), Redbridge (1 mile north), Hinksey Hill (1 mile north-west) and Bayworth (1 mile west). A short drive away, we cover Oxford (3 miles north), Didcot (7 miles south), Bicester (14 miles north), Abingdon-on-Thames (3 miles south-west), Witney (12 miles north-west) and Carterton (15 miles west).
Landmarks near Kennington
In Kennington, that means premises near The Oxford Academy, Emmanuel Christian School and The Tandem pub. The nearest railway station is Radley station, roughly 1.8 miles south of the centre. Well-known places in the area include Templars Square (1.9 miles north-east) and Oxford Castle and earlier settlement remains (2.9 miles north). The countryside around Kennington includes Lashford Lane Fen and Harcourt Hill.
Maintenance after handover
Once the work is signed off, a little attention goes a long way:
- Mention RAMS, insurance or CSCS requirements up front
- Check sealant joints during planned building inspections
- Log resealing dates block by block
- Keep bins and bikes away from communal door frames
If a joint we sealed fails within 12 months, tell us and we’ll look at it. Beyond that, routine checks spot the next round of repairs.
One failed perimeter normally means others on the same building are close so a single failure is a sign to check the rest. A planned reseal saves repeated visits.
Questions we are asked in Kennington
Do you cover business parks and estates near Kennington, such as Sandford Lane Industrial Estate?
Yes. We cover Kennington and the area around it, including industrial estates, business parks and retail parks such as Sandford Lane Industrial Estate. Photos and a short description are enough for a first look.
We manage a building near Radley station. Can you help?
Yes, and several blocks can go on one quote. We work to your notice and access arrangements.
Can you reseal a whole block or estate?
Yes. We survey and price each building, then work through them in order starting wherever is most urgent.
Does weather matter for sealant work?
It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.
Can you work to our specification?
Yes. The specification and the manufacturer’s installation guidance are what we work to, and any queries are raised before we start.
How do you choose the sealant?
The specification comes first, if there is one. If there isn’t one, it comes down to the joint: its movement, its surfaces and what it has to cope with.
How long before the joints can be used?
The product and site conditions decide that. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.
Places near Kennington
What else we do in Kennington
Signs you need mastic sealing in Kennington
Much failed sealant was laid on dirty, dusty or damp surfaces. Without clean, sound faces and a primer where the product needs one, the bead peels off one side.
If one of these sounds familiar, it’s time for a closer look:
- Window mastic that has split and shrunk
- Complaints coming in block by block
- Open joints in brickwork or panels
- Draughts at frames across a block
Blocks of flats and mixed-use buildings often cluster around stations such as Radley station (to the south of Kennington) and their window and balcony mastic tends to age at the same rate across a building.
Questions to ask before you book
- Their plan for phasing and protecting the area
- Will CSCS-carded applicators be on site?
- The terms of the workmanship guarantee
- Will RAMS and insurance details be available?
When it isn’t the sealant
Our job is the joint, not everything around it. On its own, sealant can’t deal with:
- Frames that are rotten, warped or broken
- Old mastic suspected of containing asbestos, which must be tested and dealt with by a specialist first
- Substrate edges that need repairing first
If in doubt, phone 01277 525 020 or use the quote form and we’ll say what we think.
Surfaces we seal
- Window and door perimeters on blocks
- Balcony and threshold joints
- Communal entrances and stairwells
- Shopfronts below residential blocks
- External wall and movement joints
- Communal kitchens and washrooms
Our process
Diagnose, treat, sign off: that’s the shape of every visit. First comes an inspection and agreement on scope, then the work is carried out to the specified product and detail, and the job ends with a walk round and sign-off. What matters most for a job in Kennington is a clear list of what needs doing, so send photos of each area. You’ll then get a fixed price for the work.
- First comes a look at the joints and, for older buildings, the asbestos records.
- A fixed quote covers the joints, products and order of work.
- We strip out the old sealant.
- The joints are prepared and resealed with the right product.
- Buildings are completed in turn.
What we need from you
- Make sure the joints can be reached
- For older buildings, check the asbestos register before work
- Tell us which areas need to stay in use
Get a fixed quote
Send us photographs, drawings or a joint schedule are often enough for a fixed quote. Where a site visit makes more sense, we will arrange one.