
Mastic Sealing in New Milton
Work needed on a mastic joint in New Milton? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Damp patches beside frames
- Draughts at frames across a block
- Old repairs sealed over failed mastic
Mastic sealing for businesses in New Milton
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Mastic sealing in New Milton
Most buildings come with mastic joints nobody has looked at since handover, and it ages quietly: it sits round windows and doors, along external joints and through communal areas. When it hardens, splits or pulls away, water and draughts follow along with complaints. We work on communal kitchens and washrooms, external wall and movement joints and window and door perimeters on blocks, and the usual reasons a site gets in touch are damaged joints in communal entrances and corridors and mastic failing across several blocks on an estate. One point of contact handles commercial sealant work in New Milton from the first photos to the final walk-round, whether it’s one building or several.
For landlords and associations with stock in and around New Milton, grouping buildings into one visit saves travel. Send the addresses and photographs and we will quote for all of them together.
The 12-month guarantee covers our workmanship: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Location
- New Milton (BH25)
- Region
- Hampshire
- Guarantee
- A 12-month guarantee
- Price
- A fixed quote before we start
- Phone
- 01277 525 020
- Page updated
- 3 November 2026

Your questions answered
Do you cover business parks and estates near New Milton, such as Gore Road Industrial Estate?
Yes. Estates, retail parks and business parks around New Milton, Gore Road Industrial Estate among them, are all within reach. A few photographs and the unit address let us price the work.
Is a smaller place like New Milton outside your area?
No. Places such as New Milton 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.
How do you reach windows on upper floors?
We talk through access for each building when we quote. Tell us the building height and any access already in place, and we’ll tell you how we’d approach it.
Do you take on small jobs?
We quote for single jobs as well as large packages and programmes. Photos and a description are enough to start.
What do you charge?
There isn’t a price list, because every site is different. With photographs or drawings, we can give you a fixed quote.
Do you work to architects’ specifications?
Yes. Send it with your enquiry, and the quote will be based on it, flagging anything that needs clarifying.
Is it fine to apply new sealant on top of old?
No. Sealing over old material is one of the classic causes of early joint failure, so it all comes out first.
Also near New Milton
Other services in New Milton
What affects the price in New Milton
Sealant work doesn’t have a standard rate, because every site is different. What we look at:
- Which sealant the job calls for
- Removal of failed or old sealant
- Distance, for remote addresses
- Quantities, in metres or numbers
Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote and we will put a fixed figure on it.
What we need to price the job
However big the job, these details speed things up:
- Whether the building will be occupied during the work
- Your programme or deadline
- Clear photographs of the problem areas
- Access details, including height
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.
When to call us in New Milton
UV and rain age external sealant. The surface chalks, the body stiffens and cracks appear most of all on the sunniest and most exposed elevations.
It’s worth sending us details if you spot any of the following:
- Brittle perimeter mastic across a building
- Occupiers reporting cold air round windows
- Leaks at window and door perimeters
- A mix of products and colours from past repairs
Schools and community buildings such as The Arnewood School need frame and external mastic kept sound like any building.
Questions to ask before you book
- Can the work be phased to keep areas open?
- Will RAMS and insurance details be available?
- Will CSCS-carded applicators be on site?
- Will failed sealant be removed rather than covered?
Why deal with it now?
Adding sealant to cyclical maintenance is an easy win. Leaving it until there’s a leak turns it into reactive work and less choice about when. In a smaller place such as New Milton, getting a contractor back for a second visit takes time, so we’d suggest renewing all the joints that are going, not just the worst.
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 quote and we’ll explain how it’s made up.
Why clients in New Milton choose us
- Colour agreed before work starts
- 12 months’ guarantee on every job
- Specification-led, product-correct work
- CHAS accredited
See how commercial sealant jobs are priced and how we’re accredited.
What we can’t put right
Honesty saves time and money. Fresh joints won’t solve:
- Old mastic suspected of containing asbestos, which must be tested and dealt with by a specialist first
- Masonry that has broken away beside the joint
- Leaks through the frame itself rather than the perimeter
If in doubt, phone 01277 525 020 or email drawings and photos and we’ll say what we think before you book.
Where we work in New Milton
- External wall and movement joints
- Communal kitchens and washrooms
- Shopfronts below residential blocks
- Balcony and threshold joints
- Communal entrances and stairwells
- Window and door perimeters on blocks
Surface by surface
Communal areas
Communal entrances, stairwells and corridors have joints at door frames, screens, skirting and floor edges. Fresh joints make shared areas look looked after.
Commercial and mixed-use buildings
Landlords with commercial portfolios have shopfronts, office entrances and external joints to look after. A planned programme suits multi-building portfolios.
Planned mastic for New Milton portfolios
New Milton sits close to the coast, within about 2 miles. For owners and agents with buildings near the sea, exposed elevations are where frame mastic fails first, so it’s worth inspecting those sides more often. New Milton is in the South East, one of the UK’s drier regions. Outside work still depends on dry joints, and south- and west-facing elevations, which take the most sun and rain, often age first.
If you look after a block within reach of New Milton station, under half a mile to the north-east of New Milton, frame and balcony mastic can be renewed on one programme. Trustees of buildings like Parish Church of St Magdalene can bring frame and external mastic into a planned maintenance list.
New Milton is in Hampshire. If you’re looking for mastic sealing in New Milton, we can help, as we do across Hampshire. Across Hampshire, 723 places are covered, including New Milton. Southampton is covered too, around 16 miles from New Milton.
Business premises anywhere in BH25 are within our area. We cover commercial and managed buildings on Station Road, Worthy Road and Whitefield Road. With the A337 and B3055 nearby, New Milton is easy to get to with materials and equipment. Sites close to New Milton are covered too, including Ashley (1 mile north-east), Barton on Sea (1 mile south), Bashley (1 mile north), Ossemsley (2 miles north) and Hordle (2 miles east). Further afield, our area takes in Totton (13 miles north-east), Lymington (5 miles east), Hythe (13 miles north-east), Ringwood (8 miles north-west), Dibden Purlieu (13 miles north-east) and Marchwood (13 miles north-east).
Around New Milton
We work on buildings around The George Centre pub and New Milton Junior School. New Milton has its own railway station: New Milton station. Well-known places in the area include Highcliffe Castle (2.7 miles south-west) and Sammy Miller Motorcycle Museum (1 mile north-west). Green spaces nearby include Milford on Sea LNR.
Our process
We follow your site rules from the start: sign-in, induction and whatever permit system the building uses. Once we’re cleared to begin, we take the joints in the sequence agreed with you, and each area is checked before we leave it. Work in places the size of New Milton is planned as a single visit where we can. Clear photos and measurements help us bring the right products.
- We inspect the joints, building by building, and record what has failed and why.
- You get a fixed quote, priced per building where that helps your budgeting.
- The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
- We remove the old mastic completely and clean the joint faces back.
- Backing rod and primer go in where the joint and the product need them, then new sealant is applied and tooled.
- Each building is checked on completion and the work carries our 12-month guarantee.
Preparing the site
- Confirm the product named in the specification
- Make sure the joints can be reached
- Share the asbestos register for older buildings
Getting a fixed quote
Photos, drawings or a schedule of the joints are often enough for a fixed quote. Where a site visit makes more sense, we’ll arrange one.