Construction answering service run by AI
A builder's office line has more kinds of caller than most: owners who want a bid, subcontractors with questions about plans, drivers with a truck at the gate, inspectors who need to confirm a visit. Asyntai answers that line as an AI agent. It gives each caller what your bid sheets and site rules say, and passes the rest to your office as callback requests, each with a number the caller confirmed.
Four kinds of caller on a construction company line
The agent opens each call by saying it is an AI assistant, then gives your greeting. After that, the caller type decides what happens, and your AI Instructions decide the details.
Owners who want a bid or a site visit
A developer with drawings, a family with a lot, a business that needs a tenant build-out. The agent explains how your preconstruction process works, then takes a name and a callback number for the estimator and repeats the number back for a yes.
“We have stamped plans for an addition. Do you price from plans?”
Subcontractors asking about open bids
Upload the list of projects you are bidding, with trades, due dates and where to send numbers. Electricians, framers and drywall crews get the date and the address for their bid during the call, instead of waiting for someone in the office.
“When are drywall numbers due for the Harmon Street clinic?”
Suppliers and delivery drivers
A load of trusses, a concrete pour, a dumpster swap. Paste your delivery notes for each active site, and the driver hears which gate to use and the hours. For anything else on site, your rule can give the superintendent's number.
“I've got roof trusses for Elm Road. Which gate?”
Inspectors, architects and clients who need a person
When a caller asks for someone, the agent says it is putting them through and transfers the call during your Escalate to Human hours. Your phone shows the caller's number. Outside those hours, it takes a callback request instead.
“This is the county inspector about Thursday's framing check.”
What a contractor answering service can answer from
Your office already keeps the information that callers ask for: the bid list, the delivery notes, the warranty process. Asyntai answers from those files and from your website, and follows the rules you write for the jobs you never discuss by phone.
- Your company websiteProject types, the counties you build in, how your design-build or bid process works, and your past projects. Read page by page.
- Bid lists and site notesOpen bids with due dates, prequalification requirements for subs, delivery hours and gates for each job, the warranty request process. A PDF file or pasted text.
- AI Instructions for the officeNo cost per square foot by phone, which numbers to give for which site, and which callers always go to the estimator. A new bid list or instruction is used from the next call.
Every kind of caller gets its own next step
On a construction line, a sales lead, a trade question and a site problem can arrive in the same ten minutes. Your rules decide what each caller hears: drivers get the superintendent's number, subs get the bid dates, and owners leave their details for the estimator.
- Bid requests arrive in writingA callback request by email with a confirmed number, and the transcript with the project type, the location and the schedule the owner described.
- Trade questions end on the callDue dates, scope packages and where to send a number come from the bid list you uploaded.
- Site calls go to the siteDrivers hear the gate and the hours, and other site callers get the superintendent number your rule names.
Put the AI answering service on your office line
The agent answers a number in your own Twilio account, and Twilio bills you for that number and its minutes. The number on your job site signs, trucks and bid documents can stay: forward it on the schedule you choose.
- Create an Asyntai account with your company website, which is read in a few minutes. Upload the open bid list and paste the delivery notes for each site.
- Write your AI Instructions for pricing and site calls. Put the greeting on the Voice Agent page, then make a free test call in the browser as a sub asking about a due date.
- Connect Twilio on the Phone Calls page with the Account SID and Auth Token, and press Import next to the office number.
- Set the transfer number and the hours under Escalation, then forward the office line when nobody picks up. Call it from the truck and ask for a bid.
A traditional answering service and Asyntai on a construction line
Each row is one call a builder's office gets in a normal week, and what happens to it with each kind of service.
| Call | Traditional answering service | Asyntai AI answering service |
|---|---|---|
| Who answers | Operators at the service | An AI agent that says it is an AI assistant, then gives your greeting |
| An owner who asks for a bid | A message for your office | Your preconstruction steps explained, then a callback request with a confirmed number |
| A sub asking for a due date | As your script for the service says | The date and scope from the bid list you uploaded |
| A driver at the site gate | As your instructions to the service say | The gate, the hours and the superintendent's number from your rule |
| A new bid list | Send the update to the service | Upload the new file; the next call uses it |
| What the office receives | A message, in the format the service uses | A callback request by email, a saved lead, and the full transcript in the dashboard |
| Calls at the same time | Depends on the service | 2 on Standard, 5 on Pro |
| Billing | Usually by the minute or per call | Monthly plan with included voice minutes; Twilio bills the number and call minutes |
Services differ from one provider to the next, so compare with the terms you have today. Asyntai plans with phone calls: Standard, $139 a month with 200 voice minutes; Pro, $449 a month with 1,500 voice minutes. Twilio rates are on the Twilio voice pricing page.
Contractor answering service: questions from the office
For general contractors, custom home builders and commercial builders who weigh an AI agent against an answering service with operators.
What does a construction answering service do for a general contractor?
It covers the office line when nobody there can pick up. With Asyntai, an AI agent answers in your company name, settles questions from your bid list, site notes and website, and turns bid requests into callback requests for the estimator. Every call is kept as a transcript in your dashboard.
Can the agent answer subcontractors about the bids we have out?
Yes, when the details are in a document you upload: project name, trades, due date and where to send the number. When the bid list changes, upload the new version, and the next caller hears the new dates. Prequalification requirements can sit in the same file.
Will it give an owner a price or a cost per square foot?
It gives only what your content and rules allow. A rule such as "never give a price; the estimator prices every job after a site visit" means the owner hears that and leaves a name and number. If you publish a fee for a design consultation, it can give that fee.
How do delivery drivers and subs reach the right job site?
Paste the delivery notes for each active site: the gate, the hours, where to stage material. Add a rule with the superintendent's number for each site. The driver hears the details and the number during the call, at any hour.
Can calls be put through to our estimator during the day?
Yes. Each imported number has one transfer number, used during the hours set for Escalate to Human. If you want bid calls and site calls to reach different people, import two numbers, for example a bids line and an office line, each with its own transfer number. An unanswered transfer returns to the agent after 20 seconds, and the agent takes a callback request.
What happens on bid day, when several subs call at once?
The Standard plan answers 2 calls at the same time and Pro answers 5. A caller beyond that hears that the lines are busy and is asked to call again in a few minutes. If you expect a heavy bid day, put the due date and the submission address on your website too.
Can it tell a client where their project stands?
If your project management system has an API, Custom Tools on Standard and Pro can let the agent look up live data during a call, such as the next scheduled milestone. Without that, a client who asks gets put through during your hours or leaves a callback request.
How does the cost compare with an answering service we pay per call?
Asyntai is a monthly plan: Standard is $139 a month with 200 voice minutes, Pro is $449 a month with 1,500. Each answer on a call also counts as one AI reply on the plan. Twilio bills the number and the call minutes on your own account. Set last month's call minutes against the plan minutes to compare.
Choosing a contractor answering service for a construction company
Search for a construction answering service and you will find offers built around one idea: someone answers your phone in your company name and passes the message on. For a general contractor or a builder, the question is what that someone can do with the call. A construction office line is not a single queue of homeowners asking for quotes. It is owners and developers, subcontractors and suppliers, inspectors and architects, all dialing the same number, often while the people who could answer them are on a site, in a precon meeting or under a deadline.
Start with the owners. A family with a lot, a developer with a set of drawings, or a business owner who needs a tenant build-out is calling at the very start of a decision. They want to know whether you take on their kind of project, whether you build in their county, and how your process works: a free site visit, a design-build agreement, or a bid from plans. Asyntai answers those questions from your website and the documents you upload. Then it asks for the caller's name and a callback number, repeats the number one digit at a time, and waits for the caller to confirm. The request goes to your escalation email, the contact can be saved as a lead, and the estimator reads the whole conversation in the dashboard before calling back.
Subcontractors are the callers that set construction apart. When you have work out to bid, electricians, framers, plumbers and drywall crews call to ask about due dates, scope packages, addenda and where to send their numbers. Each of those calls takes a few minutes of an estimator's day. Upload the open bid list as a PDF file or paste it as text, and the agent gives every trade the same answer from the same source. When an addendum moves a due date, upload the new list, and the change reaches the next caller. If a sub wants to talk the scope through, they can ask for a person.
Suppliers and delivery drivers have a narrower need. A driver with a load of trusses or rebar wants to know which gate to use, what hours the site takes deliveries, and who to call when the gate is locked. Paste a short delivery note for each active site and write a rule with the superintendent's number. The driver hears the gate and the hours, and gets the number to call, at six in the morning or at four in the afternoon. Concrete pours, dumpster swaps and crane days work the same way: one note per site, kept current by the office.
Some callers need a person, and the agent hands them over. During the hours you set for Escalate to Human, a building inspector, an architect or a client who asks for someone is told that the call is being put through, and it rings the transfer number of the line they dialed. The screen shows their own number, so you know who it is. If nobody answers within 20 seconds, or the line is busy, the caller comes back to the agent, which apologizes and takes a callback request. Each imported number has one transfer number, so a contractor that wants bid calls and site calls to reach different people can import two lines, one for each.
Cost is where an answering service for construction is easiest to compare. Traditional services are usually billed by the minute or per call. Asyntai is a monthly plan: Standard is $139 a month ($125 billed annually) with 200 voice minutes and 2 calls at the same time, and Pro is $449 a month ($404 billed annually) with 1,500 voice minutes and 5 calls at the same time. Each answer the agent gives on a call also counts as one AI reply on the plan. Twilio bills the number and the call minutes on your own account. A fair test is to take last month's call log from the office line and set the minutes against the plan minutes; the plan finder helps with the choice.
Your phone number does not have to change. The number on your yard signs, trucks and bid documents can stay with your current provider, which forwards calls to a number in your Twilio account when the office does not answer, after hours, or all day. You can also publish the Twilio number as the main line instead. If you run a small outfit and your own mobile is both the forwarded line and the transfer number, set the no-answer forwarding delay to more than 20 seconds, or use another phone for transfers, so a transfer you miss comes back to the agent.
The transcripts also show you where the office loses time. After a month you can see how many subs called about the same due date, which project types owners ask about in your area, and which questions your website leaves open. Put the answer on the website or in the bid list, have Asyntai read the changed page again, and the next caller hears it. If you are a remodeler or a roofer whose calls are mostly homeowners asking for estimates, the page on an AI receptionist for contractors fits that line better. For an overview of every trade and industry, see the AI answering service hub. To start, add your website and bid list, write the pricing and site rules, and make a free test call in your browser as a sub, a driver and an owner.
Give your office line an answering service that knows your bids
Upload the bid list and site notes, write the pricing rule, and test a call as a subcontractor before you forward the line.