Northway mastic sealing
Planning work on a mastic joint in Northway? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Occupiers reporting cold air round windows
- Damp patches beside frames
- No planned programme for sealant
Need mastic sealing in Northway?
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 Northway
We diagnose before we prescribe: which joints have failed, why, and whether sealant is the right answer. Failed mastic is stripped, the faces taken back to sound material, primed where the manufacturer specifies and resealed, with backing rod setting the depth where it’s needed. The enquiries we see most involve estate-wide sealant that is simply worn out and movement joints with sealant missing, on communal kitchens and washrooms, external wall and movement joints and shopfronts below residential blocks. Facilities teams, main contractors and managing agents in Northway tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.
Older buildings and conversions around places like Northway mix old masonry with newer frames. Perimeter joints need a sealant that suits both frame and masonry.
The 12-month guarantee covers our workmanship: the preparation, the sealing and the tooling. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.
- Place
- Northway (OX3)
- Wider area
- Oxfordshire
- Guarantee
- A 12-month guarantee
- Quote
- Quoted before any work starts
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
How a job runs
We begin with a short walk round with whoever looks after the building, 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 job in Northway, the main thing is a clear picture of the work, so send photos of each area. You’ll then get a fixed price for the work.
- We inspect the joints, building by building, and record what has failed and why.
- We send a fixed quote that sets out the joints, the products and the programme.
- Dates, areas and access are agreed so residents or tenants can be told in advance.
- We remove the old mastic completely and clean the joint faces back.
- Deep joints get backing rod, faces are primed if the manufacturer specifies it, then the joint is sealed and tooled.
- Finished joints are looked over and the 12-month guarantee confirmed.
Preparing the site
- Have the specification and drawings to hand
- Flag any permit to work we will need
- Agree which areas must stay open
Getting a fixed quote
Send us photographs, drawings or a joint schedule and a fixed quote comes back to you. Where a site visit makes more sense, we’ll arrange one.
Advice
Owners, agents and contractors
Building owners and managing agents use us on sealant work across single buildings or whole portfolios. One quote can cover more than one site, which keeps the paperwork simple.
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, with CSCS-carded applicators on site.
What we can’t put right
Before quoting, we check that sealant is the right answer. It isn’t the answer for:
- Materials that need asbestos testing before work
- Water coming in from the roof or rainwater goods
- Frames that are rotten, warped or broken
If you’re not sure, just call the office on 01277 525 020 or send photos by email and we’ll give you a straight answer before you book.
What we seal
- Communal kitchens and washrooms
- Shopfronts below residential blocks
- Balcony and threshold joints
- Window and door perimeters on blocks
- External wall and movement joints
- Communal entrances and stairwells
Block-wide mastic in Northway
Northway is in the South East, one of the UK’s drier regions. 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. The 2 miles around Northway include six care or nursing homes. For owners and operators of care buildings, window perimeters and external joints are best renewed in planned phases around residents.
Churches, halls and community buildings such as St Anthony of Padua are looked after by trustees and committees like any other owner, and their frames, doors and external joints need mastic renewed in time. Student blocks close to universities like Oxford Brookes University Marston Road Site, 0.8 miles south-west of Northway, are easiest to work on between tenancies. Landlords with units on estates such as Shotover Trading Estate (1.7 miles south-east of Northway) can bring frame, door and external mastic across several units into one programme.
Northway is about 1 mile north of Oxford, in Oxfordshire. Anywhere in OX3, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. 423 places across Oxfordshire fall within our area, Northway among them.
Work on mastic joints is covered throughout OX3, whatever the building. If your site is on Copse Lane, Marsh Lane and Upway Road or close by, send details and we’ll quote for mastic joints. Access to Northway is via the A40, so getting applicators and materials to site is simple. If your building is just outside Northway, we cover Headington (1 mile south-east), Marston (1 mile north-west), New Marston (1 mile south-west), Headington Hill (1 mile south) and Headington Quarry (1 mile south-east). A short drive away, we cover Didcot (11 miles south), Bicester (9 miles north), Abingdon-on-Thames (7 miles south), Witney (12 miles west), Thame (11 miles east) and Wantage (15 miles south-west).
Local landmarks in Northway
In Northway, that means premises near English Faculty Library, Bury Knowle Park and Cheney School. You will also find Rye St Antony School (0.8 miles south) and White Hart Inn (0.6 miles south-east). For rail, the closest station is Oxford station, roughly 2.4 miles south-west of the centre. Well-known places in the area include Churchill Hospital (0.5 miles south) and Oxford Castle (2.2 miles south-west). Not far away are Headington Hill and CS Lewis Nature Reserve.
Why deal with it now?
Looking at mastic during planned maintenance costs little. Waiting until leaks appear means working under pressure with less control over timing. For buildings in places like Northway, one well-planned visit beats several small ones, so it’s worth dealing with every failing joint at once.
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a quote.
Why choose Mastic Doctor in Northway
- Colours chosen to suit frames, cladding or finishes where possible
- Work to your specification and the manufacturer’s guidance
- Fixed quotes based on photos, drawings or a visit
- 12-month guarantee on workmanship
See our cost guide and how we’re accredited.
Common questions from Northway clients
Do you work for managing agents with blocks near Oxford station?
Yes, and several blocks can go on one quote. Photos of each elevation help us quote accurately.
Will you work in a care home in Northway without moving residents out?
Yes. Care settings are planned area by area, at times agreed with the home. We follow the home’s own procedures throughout.
What if the old mastic contains asbestos?
Asbestos removal isn’t part of our work. If old sealant is suspected, work stops until it’s tested in line with the dutyholder’s asbestos management.
Can weather delay the job?
It can, for external work. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.
How do you choose the sealant?
The specification comes first, if there is one. Without one, the joint decides: its movement, its surfaces and what it has to cope with.
How long does a typical visit take?
That varies with the scale of the job, but the work typically takes a few days for most blocks, with larger programmes scheduled building by building. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.
How long will the new sealant last?
There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Sealant joints are maintenance items, so inspect them regularly.
After the work
A few simple habits keep the new joints working:
- Log resealing dates block by block
- Plan resealing building by building rather than complaint by complaint
- Make it easy for occupiers to report draughts
- Check sealant joints during planned building inspections
Encourage occupiers to report water or draughts at frames. A quick report keeps a small repair small.
One failed perimeter normally means others on the same building are close, so it pays to look at the whole elevation. A planned reseal saves repeated visits.
Towns and villages near Northway
Also in Northway
Doing it in-house
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.