Mastic Sealing in Cassington
We carry out mastic sealing for building owners, managing agents and housing associations in Cassington and the surrounding area. Send details for a fixed quote.
- Draught complaints from residents or tenants
- No planned programme for sealant
- Window mastic that has split and shrunk
Mastic sealing for Cassington sites
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Mastic sealing in Cassington
Managing agents and housing associations typically need paperwork before anyone starts. For documents, tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote. We are a Constructionline member and CHAS accredited, and we carry public liability insurance. Most enquiries involve water getting in round frames after rain and estate-wide sealant that is simply worn out, on balcony and threshold joints, external wall and movement joints and shopfronts below residential blocks. Facilities teams, main contractors and managing agents in Cassington tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.
Owners and agents with buildings around smaller places such as Cassington tend to manage small terraces of association properties, converted barns and commercial units. Frame and wall-joint mastic on all of them ages and hardens.
What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Where
- Cassington (OX29)
- Wider area
- Oxfordshire
- Cover
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Call
- 01277 525 020
- Last updated
- 3 November 2026
After the work
Once the work is signed off, a little attention goes a long way:
- Group repairs into a planned programme
- Protect low-level joints in entrances
- Mention RAMS, insurance or CSCS requirements up front
- Start inspections with the most exposed faces
Log the date and extent of the resealing for each block. That makes future programmes easier to plan and shows what was done.
Planned resealing is easier to budget than emergency repairs. We can quote buildings in priority order and work down the list.
Places near Cassington
What else we do in Cassington
How the quote is worked out
These are the things that shape the price:
- How accessible the joints are
- Backing rod, priming and other preparation
- Whether old sealant has to be cut out first
- Distance, for remote addresses
No two sites price the same: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.
What we need to price the job
To price the job accurately, we need a clear picture of the site. Useful things to include:
- Your programme or deadline
- Specification clauses that apply
- Clear photographs of the problem areas
- What the building is and how it’s used
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. For a chat about it beforehand, give us a call on 01277 525 020 or email the details over.
Common questions from Cassington clients
Is a smaller place like Cassington outside your area?
Not at all. Cassington is within our area. We cover Greater London and the counties of the South East. Send photos and a list of what needs doing, and we’ll plan the job to need as few trips as possible.
Will you take on a block within reach of Hanborough station?
Yes, we work for agents, landlords and housing associations with blocks of every size. Send the address, photographs of the elevations and your access arrangements, and we will give a fixed quote.
Is mastic sealing guaranteed?
There is a 12-month guarantee on our workmanship and we hold public liability insurance.
Will residents or tenants be disturbed?
Occupiers stay in the building throughout. If any flats or units need access, we’ll tell you in advance so you can arrange it with occupiers.
When is resealing likely to be due?
Nobody can honestly give a figure in years, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.
What paperwork can you provide?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote. We hold CHAS accreditation and Constructionline membership.
Can you take on resealing for a block portfolio?
We do. Managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios are our main clients for this work and work can be quoted per building or as a whole.
What happens if it’s left?
Resealing ahead of leaks keeps it to a maintenance task. Once water has tracked in, the repair list grows and occupiers notice. One visit to deal with every failing joint makes more sense than several trips to a place like Cassington, rather than one at a time. Photos of every joint help us quote for the whole job.
Pricing mastic joints depends on how many there are, their condition and the access, and any specification that applies. Call for a quote.
What you get with us
- Failed material removed, not covered up
- 12 months’ guarantee on every job
- One number for every site we cover
- A Constructionline member, so easy to vet
For managing agents and facilities managers
For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. We work to your programme, your specification and your site rules, and our applicators hold CSCS cards.
Building owners and managing agents use us on sealant work across single buildings or whole portfolios. Several sites can go on one quote, which keeps the paperwork simple.
Mastic sealing around Cassington: how the place shapes the job
At about 57 miles from central London, Cassington is within reach of the capital. Within reach of London, blocks run by agents and associations are common around stations; their frame mastic often ages block-wide. Cassington is in the South East, one of the UK’s drier regions. Outside mastic still needs a dry joint and the right temperature, and the sunniest, most exposed sides of a building usually need attention first.
If you manage student housing near a university such as University Field Station, 1.3 miles south-east of Cassington, the summer turnaround is the time for mastic. For owners of several units at places like Oasis Business Park, 1.9 miles to the south-west of Cassington, one programme can deal with frame and external mastic across the lot.
Cassington is about 6 miles north-west of Oxford, in Oxfordshire. Any commercial site in Cassington is covered. Cassington is one of 423 places in Oxfordshire on our list. There’s a separate page for Oxford, roughly 6 miles from Cassington.
Work on mastic joints is covered throughout OX29, for business premises of every kind. For a building on Church Lane, The Green and Pound Lane or nearby, we can quote for mastic joints. Close to Cassington, our area also takes in Swinford (1 mile south-west), Eynsham (2 miles south-west), Wytham (2 miles south-east), Farmoor (2 miles south) and Filchampstead (3 miles south). Nearby towns on our patch include Oxford (6 miles south-east), Didcot (13 miles south), Bicester (11 miles north-east), Abingdon-on-Thames (8 miles south), Witney (6 miles west) and Carterton (11 miles west).
Around Cassington
We work on buildings around Bartholomew School and Chequers Inn, among other places. The nearest railway station is Hanborough station, roughly 2.5 miles north-west. Other landmarks nearby include Oxford Castle and earlier settlement remains (4.5 miles south-east) and Radcliffe Infirmary (4.1 miles south-east). Open spaces near Cassington include Hook Meadow and The Trap Grounds and Cumnor Hill.
What we are called out for in Cassington
Communal entrances and corridors see a lot of wear, and low-level joints get damaged. Regular cleaning wears them further.
These are often picked up first by site or facilities staff:
- Patchy repairs in mismatched sealant
- Draught complaints from residents or tenants
- Worn sealant at communal door frames
- Damp patches beside frames
If you look after a block within reach of Hanborough station, which lies north-west of Cassington, frame and balcony mastic can be renewed on one programme.
What to look for in a quote
- Proof of insurance
- Health and safety accreditation such as CHAS
- Will failed sealant be removed rather than covered?
- What site paperwork they can supply
On site: what to expect
The first thing on site is a walk round with your contact, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. For a building around Cassington, tell us how to find it and who will meet us. Add it to your enquiry and we will build it into the plan.
- First comes a look at the joints and, for older buildings, the asbestos records.
- The products and programme are set out in a fixed quote.
- We strip out the old sealant.
- The joints are prepared and resealed with the right product.
- Buildings are completed in turn.
Getting the site ready
- Tell staff and tenants when we will be in
- Send asbestos survey details if the building is pre-2000
- Let us know about inductions and permits
Ask for a quote
To get a fixed quote, speak to us on 01277 525 020 or email the details over with the site address and an outline of the work. Our quote form is another easy route.