Mastic Sealing in Postcombe
Mastic sealing for building owners, managing agents and housing associations throughout Postcombe and nearby, carried out by CSCS-carded applicators. CHAS accredited and fully insured.
- Worn sealant at communal door frames
- Repeated reactive repairs to the same buildings
- Old repairs sealed over failed mastic
Mastic sealing near Postcombe
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Mastic sealing in Postcombe
Our clients include managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios. Many prefer a planned programme to one-off visits, with each block quoted and scheduled in turn. We work on window and door perimeters on blocks, communal kitchens and washrooms and communal entrances and stairwells, and the failures we’re asked to look at most are draughts at frames across a block and cracked, hardened mastic round windows on a block. Whoever orders the work in Postcombe, the brief is usually the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
For buildings around smaller places like Postcombe, we group work so one trip covers it. Photos of each elevation help us quote accurately.
Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.
- Where
- Postcombe (OX9)
- Wider area
- Oxfordshire
- Cover
- 12 months on our workmanship
- Quote
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026
FAQs: Postcombe
What documents will you need to give us for a job in Postcombe?
We will confirm the paperwork you need, such as RAMS, our insurance certificate and CSCS details, with the quote. Our applicators are CSCS-carded, and we carry £5m public liability insurance.
Is Postcombe too small for you to travel to?
No. Places such as Postcombe are covered as much as the big towns. London and every South East county are within our area. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.
Does weather matter for sealant work?
For external joints, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.
Do you take on small jobs?
Whatever the size, the process is the same: details, then a fixed price, then sealing, then a 12-month guarantee.
Can you take on resealing for a block portfolio?
Yes. Most of our mastic sealing is for agents, factors, housing associations and portfolio landlords and work can be quoted per building or as a whole.
Are you fully insured?
Yes. We are fully insured, including public liability cover.
Are you CHAS accredited and on Constructionline?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member.
On site: what to expect
Before we leave any area, we remove the tape, clean down and inspect every joint, ready for your sign-off. Where the sealant needs time to cure before use, we tell you and sign the area. Rural sites near Postcombe may need directions, gate codes or a contact on site. Send that with the details and we will confirm the plan with the quote.
- We check the asbestos register for older buildings and look at the joints.
- The products and programme are set out in a fixed quote.
- Failed mastic is removed completely.
- Joint faces are cleaned, backed and resealed.
- Buildings are completed in turn.
What we need from you
- Agree which areas must stay open
- Clear stock, furniture or equipment away from the joints
- Send any specification or drawings in advance
Get a fixed quote
Tell us about the building, the joints and when you need the work done, and we’ll put a fixed quote together. The easiest way is to phone 01277 525 020 or email a schedule or drawings.
Read more
When to call us in Postcombe
Buildings move with temperature and moisture, and every joint has to stretch and squeeze with them. If the joint or the product wasn’t suited to the movement, it splits and fails early.
Clients typically get in touch after noticing something like this:
- Failed external movement joints
- Damp patches beside frames
- Old repairs sealed over failed mastic
- Damaged joints in communal entrances and corridors
With historic buildings such as Adwell House (to the west of Postcombe) in the wider area, owners of older properties around Postcombe should expect mastic to need a product that suits old masonry.
Comparing quotes
- Can the work be phased to keep areas open?
- What level of public liability insurance do they hold?
- Health and safety accreditation such as CHAS
- Will CSCS-carded applicators be on site?
Surface by surface
Communal areas
Low-level communal joints get damaged more than most, so they often need renewing sooner.
Commercial and mixed-use buildings
Tenants in commercial buildings need to keep trading so the work is phased.
Site staff or a sealant specialist?
Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.
Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. That’s why many clients bring in a specialist from the beginning.
Owners, agents and contractors
As a CHAS accredited contractor and Constructionline member, we are straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.
Hotels, schools, healthcare sites, offices and retail units come to us directly as well. We plan around the way the building is used, so the building keeps working while we do.
Places near Postcombe
More services for Postcombe
Block-wide mastic in Postcombe
Postcombe is in the South East, one of the UK’s drier regions. Outside mastic still needs a dry joint and the right temperature, and south- and west-facing elevations, which take the most sun and rain, often age first. Postcombe lies roughly 40 miles out from central London. Commuter-belt towns tend to have plenty of managed blocks near stations and town centres.
Trustees of buildings like Church of St Mary can bring frame and external mastic into a planned maintenance list.
Postcombe is about 4 miles south of Thame, in Oxfordshire. Anywhere in OX9, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. Across Oxfordshire, 423 places are covered, including Postcombe. Sites around Oxford have their own page, about 12 miles away.
We take on mastic joints across the OX9 postcode area, for business premises of every kind. Among the streets we cover are London Road, Salt Lane and Beech Farm Close, and sites on any of them can send details for a fixed quote. Close to Postcombe, our area also takes in South Weston (1 mile south-west), Aston Rowant (1 mile east), Lewknor (1 mile south), Kingston Blount (2 miles east) and Crowell (2 miles east). Further afield, our area takes in Oxford (12 miles west), Didcot (13 miles south-west), Abingdon-on-Thames (13 miles west), Thame (4 miles north), Henley-on-Thames (11 miles south) and Benson (7 miles south-west).
Local landmarks in Postcombe
Recent enquiries here include premises near England's Rose pub and the streets around them. Other landmarks nearby include Thame Community Hospital (3.8 miles north). Green spaces nearby include Aston Rowant NNR and Bald Hill.
Quoting for work in Postcombe
Before we quote, we look at:
- The total length or number of joints
- Which sealant the job calls for
- Joint width, depth and condition
- Access and working height
Every site prices differently: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.
Details that help us quote
There’s no need for a formal survey. A few details are enough to get going:
- Any dates the work must fit around
- Photos of the joints, close up and from further back
- Anything awkward about access or site hours
- What the building is and how it’s used
Need a figure for a tender or a budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. For a chat about it beforehand, call 01277 525 020 or send details through our quote form.