Three people arrive on your site: a tenant, a shareholder and a super
They want different things, only two of them can hire you, and one generic contact form serves none of them well.
The tenant has no heat and no authority. Being useful to that person costs you nothing and takes one short paragraph: generally the landlord or managing agent is who to contact first. Say it plainly and let them go. Every minute your office spends on that call is unpaid.
The owner or shareholder can hire you, and is usually worried about two things before price: whether the building will let the work happen, and whether you have done it in a building like theirs. Answer both in the first screen rather than in a page buried under About.
The super or managing agent is buying reliability and paperwork. They want to know your response window, whether you can produce a certificate of insurance quickly, and how you behave inside an occupied building. Give them their own path from the home page, not a line in the footer.
Three visitors means three entry points on the first screen. Not three websites. Three clearly labeled routes that send each person somewhere written for them.