
Mastic sealing for building owners and managing agents in Leckford, Hampshire
Mastic sealing for building owners, managing agents and housing associations in Leckford. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Open joints in brickwork or panels
- Worn sealant at communal door frames
- Window mastic that has split and shrunk
Need mastic sealing in Leckford?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
What affects the price in Leckford
We price every job individually. The things that drive the figure:
- The total length or number of joints
- The size and state of each joint
- Working within restricted access windows
- Location, for remote and island sites
The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote.
Before you send an enquiry
Whether it’s one area or a whole building, these details speed things up:
- Your programme or deadline
- How the joints are reached, and at what height
- A wide shot and a close-up of the area
- Where the site is, with the postcode
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, speak to us on 01277 525 020 or email us.
Mastic sealing in Leckford
There isn’t one mastic for every joint on a building. Window perimeters and external joints often take a low-modulus neutral-cure silicone, and MS polymer sealants stick well to many substrates and often take paint, and colours are confirmed for whichever product is used. Site teams most often ask us about water getting in round frames after rain and estate-wide sealant that is simply worn out, across window and door perimeters on blocks, communal kitchens and washrooms and communal entrances and stairwells. A specialist sealant contractor works differently from a general builder: in Leckford, that means joint design, primers and backing rod as standard.
Owners and agents with buildings around smaller places such as Leckford tend to manage small terraces of association properties, converted barns and commercial units. Mastic around frames and on external joints wears out in time, whatever the building.
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.
- Place
- Leckford (SO20)
- Region
- Hampshire
- Cover
- A 12-month guarantee
- Quotes
- Quoted before any work starts
- Call
- 01277 525 020
- Last updated
- 3 November 2026

On site: what to expect
On arrival, we report to your site contact and complete whatever induction the building runs. Floors, finishes and fittings next to the joints are covered before any cutting starts, with the work itself normally taking anything from a day to a few weeks, depending on the number of buildings and joints. Jobs in and around smaller places like Leckford are normally planned as a single visit, so photographs and measurements up front really help. That way the right products come on the day.
- We inspect each building and record the joints that have failed.
- The quote is fixed and split as suits you.
- We agree the programme and dates with you.
- Failed sealant is removed and the faces prepared.
- Joints are resealed and tooled.
- We check the finished work and confirm the guarantee.
Before we start on site
- Have the specification and drawings to hand
- Tell us what induction or permit system the site runs
- Tell us which areas need to stay in use
Ask for a quote
Let us know the site, the scope and your timescale, and a fixed quote will follow. The easiest way is to give us a call on 01277 525 020 or use the quote form.
Related advice
What sealant work can’t fix
Honesty saves time and money. New sealant won’t cure:
- Glazing that needs replacing
- Substrate edges that need repairing first
- Roof leaks, gutters or failed flashings that aren’t sealant joints
Not sure which it is? You can ring 01277 525 020 or send photos by email and we’ll tell you honestly before you book.
Joints and surfaces we work on
- External wall and movement joints
- Window and door perimeters on blocks
- Balcony and threshold joints
- Shopfronts below residential blocks
- Communal entrances and stairwells
- Communal kitchens and washrooms
Mastic sealing in Leckford: the local picture
Leckford lies roughly 64 miles out from central London. Within reach of London, blocks run by agents and associations are common around stations. Leckford is in the South East, one of the UK’s drier regions. Outside work still depends on dry joints, and elevations facing the sun and the prevailing weather are usually where frame mastic ages first.
If you are responsible for a building such as Church of St Nicholas, frame and door mastic needs the same attention as any other property.
Leckford is about 5 miles south of Andover, in Hampshire. If you’re looking for mastic sealing in Leckford, we can help. Our Hampshire coverage takes in 723 places, large and small. There’s a separate page for Southampton, roughly 15 miles from Leckford.
We cover the SO20 postcode districts. We also cover Longstock (1 mile west), Fullerton (1 mile north), Cottonworth (1 mile north), Chilbolton (2 miles north-east) and Stockbridge (2 miles south-west) for mastic joints. A short drive away, we cover Winchester (8 miles south-east), Eastleigh (13 miles south-east), Andover (5 miles north), Totton (15 miles south), Chandler's Ford (11 miles south) and Romsey (10 miles south).
Around Leckford
Locally, jobs take us to sites close to The Peat Spade Public House and Longstock Park. Well-known places in the area include Andover War Memorial Hospital (5.6 miles north). For a walk, there’s Mill Lake.
Site staff or a sealant specialist?
Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
Different surfaces, different methods
Communal areas
Communal areas stay in use while we work. We work in sections so access is never blocked.
Planned maintenance
Resealing can be scheduled alongside other planned works, building by building.
Common questions from Leckford clients
Is a smaller place like Leckford outside your area?
Not at all. Leckford is within our area. Our area covers London and the South East counties. We plan jobs in smaller places so return trips are kept to a minimum.
Do you take on block-wide or estate-wide mastic work in Leckford?
Yes. Planned programmes across a building, block or estate are a core part of this service. We can phase the programme to suit your budgets and notice periods.
Is asbestos a concern with old mastic?
Some mastics in pre-2000 buildings contain asbestos. We check the asbestos register or survey before disturbing it, and if it’s suspected, work stops until it’s tested.
Do you work to architects’ specifications?
Yes. We follow the specification, along with the manufacturer’s installation guidance, and any queries are raised before we start.
Can people stay in the building while you reseal?
Residents and tenants carry on as normal. If any flats or units need access, we will tell you in advance so it can be arranged.
How long does a typical visit take?
That varies with the scale of the job, though a typical visit typically takes anything from a day to a few weeks, depending on the number of buildings and joints. Larger or phased jobs take longer, and we will give you a timescale with the quote.
Do you supply RAMS and insurance details?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote. We are CHAS accredited and a Constructionline member.
When to call us in Leckford
Frames, panels and masonry expand and contract through the year, and the sealant takes up that movement. If the joint or the product wasn’t suited to the movement, it splits and fails early.
Clients typically get in touch after noticing one or more of the following:
- Complaints coming in block by block
- Movement joints with sealant missing
- Worn sealant at communal door frames
- Patchy repairs in mismatched sealant
Schools and community buildings such as Test Valley School need frame and external mastic kept sound like any building.
What your quote should include
- How they handle RAMS and site documents
- Whether old or failed sealant will be cut out, not overlaid
- Proof of insurance
- Whether primer will be used where the manufacturer specifies it