Write Google search ads

I work in marketing at a construction firm. Help me write Google search ads for one service.

Context: Searches are specific to a job and a place. Residential searchers want a price and a date, and the ad has room for the service, the area and one reason to trust the firm.

Before you start, ask me for anything missing from this list:
- The service and the search terms
- The landing page
- Offers or prices we can state

Then:
1. Write ten headlines under 30 characters and four descriptions under 90.
2. Match the wording of the search terms.
3. Keep every claim to something the landing page supports.

Give me:
- Headlines
- Descriptions
- Claims that need evidence

Rules:
- Use only the facts I give you. Where something is missing, write [detail needed]. Never invent a number, a name, a quote or a source.
- Describe building work in general terms only. Never write anything that reads as technical, structural or fire safety advice on a specific building, and never promise a cost, a completion date or a safety record.
- Write in plain English, in our voice if I have given you a sample.
- Do not tell me what the rules or regulations say. If something may be restricted, flag it and I will check.

Finish with a list headed "Check before this goes out". Include these, plus anything else the director who approves marketing or our health, safety and quality lead should see:
- 'Free quote', 'fixed price' and guarantee wording, with the terms on the landing page
- Accreditation and approved-installer claims in headlines
- Finance or payment-plan wording, and whether we are permitted to offer it