Floor spring service contracts — closing speed and latch valve tuning, cover plate inspection, threshold seal condition, to keep aluminium and APG glass doors closing cleanly for the full life of the spring.
Twelve standard service lines covered as part of every contract — on top of the door-type-specific scope listed elsewhere on the page. One contract, one engineer team, one document trail.
Floor springs sit invisibly under the threshold of most aluminium-framed and APG glass commercial doors. They're sealed hydraulic units with a 8–15 year working life — but only if the valves stay correctly tuned, the cover plate stays secured, and water doesn't reach the housing through a failing threshold strip. A neglected floor spring fails 3–5 years early; a serviced one usually lasts the design life and then some. The valve tuning is a five-minute job done correctly. Skipping it costs the door 5 years.
Floor-spring controlled doors used as emergency exits must continue to self-close to BS EN 1154 standards. Cover plate hardware must remain flush and tripping-hazard free under the Workplace (Health, Safety and Welfare) Regulations 1992. Equality Act 2010 / BS 8300 opening force limits apply where the door is a public entrance.
Wherever your premises are, the same engineer team carries your documentation between visits. One contract, one accountable team, one document trail — whether you have a single site or a multi-region estate.
Moderate-traffic commercial use: 12–15 years on a well-serviced unit. High-footfall retail: 6–10 years. The biggest variable is valve maintenance — correctly tuned springs last most of their design life; mis-tuned springs slam the door and fail in half the time.
Usually fixable on the contracted visit — a closing-speed and latch-speed valve adjustment takes 5 minutes and brings the slam under control. Where the slam has been ongoing for months, the spring seals may be at end of life and replacement is the only fix — quoted separately at standard repair rate (no urgency premium for contracted sites).
No — the body is sealed and seals are not field-serviceable. Once internal leak starts, unit replacement is the only fix. Service contracts catch leaks early enough to plan the replacement at a convenient time instead of an emergency callout.
Yes — cover plate tightness, finish condition and flush-with-floor check at every visit. Worn or damaged plates are quoted separately.
A worn or unsealed threshold strip lets surface water reach the floor spring housing. Once water gets in, the housing corrodes and the spring is dead within months. Threshold strip inspection at every floor spring service visit is a small detail that saves a lot of springs.
Planned replacement: typically £500–£900 fitted, scheduled outside trading hours, no urgency premium. Emergency same-day callout for a failed spring: same parts and labour plus an emergency callout premium plus the cost of lost trading time. The contract value compounds.
A short email or a photo of your door inventory is all we need. No site visit required in most cases.
Get in touch
Head Office:
Commercial Door Maintenance and Security Ltd
61 Bridge Street,
Kington,
HR5 3DJ
t: 0800 774 7998
e: info@cdms-ltd.co.uk
Office Hours
Mon - Sat: 8am - 10pm
Sun: Closed
