Terms of service

Boiler Doctor Aid is operated by DH Quality Ltd, a limited company registered in England and Wales(company number 8239451). Our registered address is 168 Tilson House, Tilson Gardens, London SW2 4NB. You can reach us at dhqualitygasnplumbing@gmail.com or 07404 828042. In these terms "we", "us" and "our" mean Boiler Doctor Aid; "you" means the business or engineer using the app.

The app is supplied for business use by gas engineers, plumbers and their staff. It is not aimed at consumers, so consumer contract rights (including the 14-day cancellation right) do not usually apply. If you are a sole trader signing up in a personal capacity, tell us and we will honour your statutory rights.

• You must give accurate details and keep your password and any two-step codes private.
• You are responsible for everything done under your account and by anyone you invite to your organisation.
• Accounts are for one business. Do not share a login with another business.
• You must be Gas Safe registered (or otherwise properly qualified, for example F-Gas certified for air-conditioning and refrigerant work, or electrically competent for controls and wiring work) to carry out and record the work the app documents.

• New accounts get 1 month free. After that the price is £4.99 a month, or £49.99 if you pay yearly.
• Subscriptions renew automatically until cancelled. Payment is taken in advance; we never see or store your full card details.
• You can cancel at any time from the Billing screen. Cancelling stops the next payment; the current paid period runs to its end.
• Refunds are covered by our refund policy.
• We may change prices with at least 30 days' notice by email or in the app. If you do not agree, cancel before the change takes effect.
• We may grant free or discounted access to individual accounts at our discretion, and withdraw it on notice.

Our order process is conducted by our online reseller Paddle.com. Paddle.com is the Merchant of Record for all our orders. Paddle provides all customer service inquiries and handles returns. Payment, billing, tax, cancellation and refund mechanics are governed by Paddle's Buyer Terms.

Your customers, properties, appliances, certificates, invoices, photos, signatures and logo remain yours. You grant us the limited right to host, back up, process and display that content so we can provide the app to you. You are responsible for the accuracy of what you record and for holding it in line with your own legal duties (for example landlord gas safety record retention).

You can export or download your records at any time while your subscription is active. After an account closes we keep your data for 30 days so you can recover it, then delete it from live systems.

The app is a record-keeping and reference tool covering gas boilers, air source heat pumps, air conditioning and electrical controls. It does not replace your training, your judgement, the manufacturer's instructions, the Gas Safety (Installation and Use) Regulations 1998, current gas safety standards, F-Gas regulations, BS 7671 wiring regulations, MCS standards or your Gas Safe registration and other qualification duties.

• Boiler and appliance data (GC numbers, manuals, operating pressures, test points), air-conditioning and heat-pump model data, fault codes, diagnostic pathways, wiring diagrams, electrical reference values (thermistor, voltage, resistance and continuity readings), gas rate calculations, ACS study material, parts lists and repair estimates are provided as guidance only and may be incomplete or out of date.
• Always confirm the appliance or equipment from its data plate and the manufacturer's own literature before working on it or ordering parts. Data-plate scans and imported documents are read by software and may be misread — check them against the physical plate or original document.
• Gas rate, electrical and other calculator results depend on the figures you enter and the conditions on site. You are responsible for verifying every reading and result.
• Only work you are qualified and registered to carry out — gas work under Gas Safe registration, refrigerant work under F-Gas certification, electrical work under the relevant competency — may be recorded and certified through the app.
• Prices and part availability shown by supplier links are the supplier's, not ours, and change without notice.
• Certificates you issue (including gas safety records, servicing, commissioning, air source heat pump and air-conditioning forms) are your professional documents. You are the person certifying the work, not us.

Plumbing, heating, ventilation, air-conditioning, refrigeration and electrical information is provided as general professional reference material, not as a substitute for a site-specific risk assessment, current regulations, competent-person requirements or the instructions for the exact equipment fitted.

You must not misuse the app. Full details are in our acceptable use policy, which forms part of these terms.

We aim to keep the app available at all times but do not guarantee uninterrupted service. Maintenance, upgrades, third-party outages and mobile network problems can interrupt it. Offline mode lets you keep working without signal; records sync when you are back in range.

Support is by email during normal working hours. We do not offer a guaranteed response time.

The app, its design, code, templates, catalogue content and branding belong to us or our licensors. You get a non-exclusive, non-transferable licence to use it for your own business while you are subscribed. You must not copy, resell, reverse engineer or build a competing product from it.

Nothing in these terms limits liability for death or personal injury caused by negligence, fraud, or anything else that cannot lawfully be limited.

Subject to that, we are not liable for loss of profit, loss of business, loss of contracts, loss of goodwill, or any indirect or consequential loss. Our total liability to you in any 12-month period is limited to the subscription fees you paid us in that period.

We are not liable for decisions taken on site, for the accuracy of certificates you issue, or for parts bought from third-party suppliers.

We may suspend or close an account for a material breach, unpaid fees, a security or fraud risk, or a serious or repeated breach of these terms or our acceptable use policy. We will normally warn you first unless immediate action is reasonably needed to protect customers, other users or the service. You may close your account at any time from the app or by emailing us.

We may update these terms. Material changes will be notified by email or in the app at least 30 days before they take effect. Continuing to use the app after that means you accept the new terms.

These terms are governed by the law of England and Wales, and the courts of England and Wales have exclusive jurisdiction.