
Mastic sealing for building owners and managing agents in Gerrards Cross, Buckinghamshire
Sealant work in Gerrards Cross for main contractors, managing agents and facilities managers: mastic sealing for building owners, managing agents and housing associations, with a fixed quote first.
- Draughts at frames across a block
- Damaged joints in communal entrances and corridors
- Water getting in round frames after rain
Mastic sealing across Gerrards Cross
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Gerrards Cross: questions and answers
Is Gerrards Cross too small for you to travel to?
No. Places such as Gerrards Cross are covered as much as the big towns. We cover Greater London and the counties of the South East. We plan jobs in smaller places so return trips are kept to a minimum.
Will you work in a care home in Gerrards Cross without moving residents out?
Yes. We work around residents’ routines, a room or two at a time. Noise and disruption are kept to a minimum.
How long does a job like this take?
The duration is planned around your programme and the access we’re given. You’ll have an expected duration with the quote.
Can you plan resealing across several buildings?
Yes. We survey and price each building, then work through them in order, and the programme can start with the worst.
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 checks let you plan resealing before leaks or damage.
Can you seal joints high up on a block?
Access is discussed and agreed before the quote is fixed. Tell us the building height and any access already in place, and we’ll tell you how we’d approach it.
What do you charge?
We don’t publish prices, as every site differs. Send photos or drawings and we’ll price it at a fixed figure.
How we handle mastic sealing in Gerrards Cross
For over 20 years we have resealed joints for owners, agents and landlords. Our applicators are CSCS-carded, and the work is backed by public liability insurance. Each building we complete carries a 12-month guarantee on our workmanship. Most enquiries involve mastic failing across several blocks on an estate and window mastic that has split and shrunk, across external wall and movement joints, communal kitchens and washrooms and balcony and threshold joints. A specialist sealant contractor works differently from a general builder: in Gerrards Cross, that means joint design, primers and backing rod as standard.
In a smaller place such as Gerrards Cross, landlords and agents tend to look after small blocks, flats over shops, sheltered housing and commercial units. The mastic around their frames and external joints ages like anywhere else.
Every job is signed off with a 12-month guarantee. It’s a plain promise: if our work fails within that year, we put it right.

- Where
- Gerrards Cross (SL9)
- Region
- Buckinghamshire
- Guarantee
- 12 months on every job
- Quotes
- Quoted before any work starts
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
For owners and agents in Gerrards Cross
The 2 miles around Gerrards Cross include two care or nursing homes. Frame mastic on care buildings is best renewed elevation by elevation, with the manager deciding timings. The South East is one of the drier parts of the UK. External mastic still waits for dry faces and the right temperature, and south- and west-facing elevations, which take the most sun and rain, often age first.
Owners of student blocks near Buckinghamshire New University (to the south-east of Gerrards Cross) can schedule frame and external mastic for the summer vacation. Older community buildings, St James Church among them, often have frames of mixed ages whose mastic varies. Site managers at schools like The Gerrards Cross CofE School can fit frame mastic into the summer works.
Gerrards Cross is about 5 miles north-east of Slough, in Buckinghamshire. Looking for mastic sealing in Gerrards Cross? We can help. 308 places across Buckinghamshire fall within our area, Gerrards Cross among them. Reading is covered too, around 20 miles from Gerrards Cross.
If you need mastic sealing in SL9, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. Among the streets we cover are Station Road, East Common and Oxford Road. Being close to the A40 and A413, Gerrards Cross is straightforward for us to reach. Sites close to Gerrards Cross are covered too, including Tatling End (1 mile south-east), Fulmer (1 mile south), Hedgerley Green (2 miles west), Higher Denham (2 miles east) and Baker's Wood (2 miles east). Nearby towns on our patch include High Wycombe (9 miles west), Chesham (9 miles north), Marlow (9 miles west), Amersham (7 miles north), Beaconsfield (4 miles north-west) and Princes Risborough (15 miles north-west).
Landmarks near Gerrards Cross
Locally, jobs take us to sites close to St Mary's School, The Chalfonts Community College and Bulstrode Park. Gerrards Cross has its own railway station: Gerrards Cross station. Other landmarks nearby include Chiltern Open Air Museum (3.8 miles north) and Chalfonts and Gerrards Cross Hospital (1.7 miles north). Not far away are Horse Shoe Bay and Church Wood.
For managing agents and facilities managers
Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. Keys, access and contacts can be agreed in advance.
When you manage a building on behalf of an owner, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.
How the quote is worked out
We price every job individually. The main factors are:
- Induction, permit and paperwork requirements
- How much existing material needs removing
- The size and state of each joint
- Working within restricted access windows
Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.
What we need to price the job
To price the job accurately, we need to understand the site. Useful things to include:
- Drawings or a marked-up plan, if available
- The postcode of the building
- Any specification or named product
- What the building is and how it’s used
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price against exactly what is specified. For smaller jobs, photos and a description will do.
Places near Gerrards Cross
More services for Gerrards Cross
Honest limits
Sealant solves a lot, but not everything, and we’re upfront when that’s the case. It won’t fix:
- Cracked or crumbling render, brick or stone at the joint edges (we’ll tell you if so)
- Glazing that needs replacing
- Asbestos-containing sealant, which we don’t remove
If you are not sure, just phone 01277 525 020 or email us and we will give you a straight answer.
Surfaces we seal
- Communal entrances and stairwells
- Communal kitchens and washrooms
- Window and door perimeters on blocks
- Shopfronts below residential blocks
- Balcony and threshold joints
- External wall and movement joints
Different surfaces, different methods
Commercial and mixed-use buildings
Tenants in commercial buildings need to keep trading, so we plan around them.
Estate-wide resealing programmes
Consistent products and colours across an estate make future maintenance simpler and easier to manage.
On site: what to expect
The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. If neighbouring businesses or buildings around Gerrards Cross need work too, visits can be combined. Mention the building’s opening times and we’ll work within them.
- First we look at the mastic on each building and note what needs replacing.
- We send a fixed quote that sets out the joints, the products and the programme.
- The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
- Old sealant is stripped and each face prepared back to firm material.
- Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
- Each building is checked on completion and the work carries our 12-month guarantee.
Getting the site ready
- Share your working hours and any access restrictions
- Clear stock, furniture or equipment away from the joints
- Tell staff and tenants when we’ll be in
Getting a fixed quote
Pricing a project or setting a maintenance budget? We will quote against your scope and drawings you can plan around. For a chat about it beforehand, ring 01277 525 020 or send photos by email.
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Leave it or put it right?
Draughts round window perimeters cost occupiers comfort and the windows usually get the blame. In many cases, new perimeter sealant deals with it where the frames themselves are sound. Sealant hardens, cracks and loses grip with age, UV and movement. Renewing it in good time keeps the building weathertight.
What a job costs comes down to how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a fixed quote when you are ready.
Why us?
- Matching to RAL references, product permitting
- Standard and matched colours in many product ranges
- Fixed quotes based on photos, drawings or a visit
- A Constructionline member, so easy to vet
Take a look at our cost guide and our accreditations.